This is the actual moment I began to see the deepness of love between seiya and usagi. It was this very scene that made me ship them more. That look of longing and love seriously romantic and I love the way seiya calls usagi odango so cute.🌹💕😊
@qwuezalothus If you REALLY think about it, Usagi and Mamoru have nothing realistic in their relationship, they didn't even fall in love with each other until they discovered they had a past life together in fact those two couldn't stand each other. They are only together because of just one version of future that they saw and that's it and the little brat too. But Seiya fell in love with Usagi for who she truly was not knowing anything of her past. Tha's true love there.
Before they knew their future, he still loved her very much. In episode 34, he didn't know she was Sailor Moon but begged Zoisite for her safety and when he finally knew she was Sailor Moon, he saved her from Zoisite. In Doom Tree Arc, althrough he lost all of his memories, something deeply in his heart alwayd wanted to protect her that it created a "person" that came and rescue her everytime. He also didn't feel annoying that she was hanging around him. When he was a babysitter (along with Usagi :3) Natsumi came and tried to help but angrily left his house later on, he didn't stop but he held Usagi back when she left :3 he even risked his life to protect her from Fiore. The anime producer just hated him but in manga, he was awesome.
just because he wanted to protect her doesnt mean he loved her that way romanticly you forgot that he was pretty much dating REI at the time at season 1, the anime producer didnt hate Mamoru neither did the director, the director just disliked ''canon relationships'' because he felt there was a lack of tension between the characters then, and moved on to work on Utena
uh first of all Seiya is a girl and they won't date because Usagi is straight and no Haruka kissing Usagi doesnt count because Usagi didnt want that, second of all we already know Usagi and Mamoru will be together in the future and third of all Mamoru protects Usagi like all the time and fourth of all Mamoru is all of this, Seiya is just a Mamoru and Haruka wannabe.
After the bookstores quit selling Sailor Moon tapes, and Sailor Moon was discontinued from Toys R Us, I stopped keeping up with Sailor moon as a kid and never realized this season even EXISTED! ALL THE LOVE BETWEEN SEIYA AND USAGII IS SO REAL AND AHHH FORGET TUXEDO MASK OR WHATEVERRRR I have only seen 3 Seiya videos and I am in love
Queen Serenity wished for all of them to be reborn on earth to live normal lives. Clearly, Usagi & Mamoru fell in love before they found out about their past lives, whether in the anime or manga. Even the inner & outer senshi truly love Usagi and they do believe that they should protect her, so please don't make that also something fake. I love Seiya & Usagi together but there's no need to attack her relationship with Mamoru. Who knows, in an alternate world, Usagi & Seiya could be together. :)
Mamoru and Usagi did not fall in love with one another before finding out their past lives, ( at least not in this anime adaption) that only happens in the manga and Sailor Moon Crystal, in this anime adaption Mamoru was even daiting Rei at the time and Usagi and Mamoru were very agnostic to each other.
@blackkat1986 Destiny is a saint rule for nobody. Everyone can change his/her future, no matter how much the world is against it. That is one of major morals of the Sailor Moon mythos itself.
If we think realisticly, eventually Usagi's marriage with Mamoru will get boring, and she will have to become fed up with the fact that she's useless to sociaty without the power of the Moon Kingdom. My guess is that Seiya will become permanently a man, visit Usagi on Earth after 5-6 years, and as he helps Usagi to find a new direction for her life, she will slowly fall in love with him. This is my solid theory.
I agree 100%. I envision Mamoru falling in love with a fellow student while he's in medical school and breaking up with Usagi because she's too dependent on him and their personalities clash. After Planet Kinmoku is rebuilt, I totally see Seiya coming back to Earth to live as a man, starting a career as a solo artist, and reconnecting with Usagi :)
@blackkat1986 most defenitely!! i agree, they were my favorite fantasized couple in anime history... no offense to her destiny with mamoru, but i was never fond of him *he's more likable in the Manga books* but this season really made me cry how bad seiya really wanted to always be with usagi was so sweet
Many people defend the feelings between Usagi and Seiya here. I just want to say my opinion. Usagi is not trying to fight back her feelings towards Seiya. These feelings are there. The point is not that she does or doesn't have feelings for Seiya is that she loves more Mamoru than him. That s it. It is true, the love between Usagi and Mamoru is eternal, and so maybe a little boring. Seiya is the 'new fascinating boy' and it s normal that all are curious about him. Even Usagi who is just a high school girl (so young afterall!). The production was very smart to exclude Mamoru and Chibiusa here. Do you think that if Mamoru had been there, the same situation would have ever been possibile to happen? If Seiya is the only true love (as many comments claim) of Usagi something would have happened anyway. Instead, in the last episode Usagi has a totally different behaviour with Seiya, like "ok now I dont need you anymore many thanks for your company goodbye...I even forgot that just yesterday I had some true feelings for you" 😂 (I felt something like that in the last scene of season 5). This because the love of her life was there. She wasn't anymore scared, vulnerable, alone, sad... She was happy again (and dont say she was happy without Mamoru because she painfully missed him since the first episode). So, yes, she has feelings for Seiya but they arent enough to forget or replace an eternal love. In addition, in the manga Seiya is a woman not a man. In the anime the production wanted to make a sort of triangle to draw more spectators. Dont get me wrong the situation between Usagi and Seiya is nice but I think there is one only eternal lovely couple (even if boring sometimes 😊).
Now let's be honest here, the last episode made a straight cut and was very inconsistent. They destroyed something that was carefully built up within seconds. Apart from that: Usagi is a loyal person and yet I'm pretty sure she felt love for Seiya. With Mamoru being back she might have felt less insecure, yes, but the fact that she asked Mamoru whether he loved her and how much he loved her at the very end of the episode, shows to me that she wanted to be sure that Mamoru can love her in ways Seiya showed her. Unlike the manga the 90s anime never gave us a timeskip or wedding scene - which is weird as this was always Usagi's big dream. Since the 90s anime and the manga are very different from each other, I still see the ending of the 90s anime as open end. We can't say for sure if Usagi won't start comparing Mamoru with Seiya after this and maybe realize that she wants more than what Mamoru can offer. Ps. Yes, I prefer Seiya with Usagi, so I'm sticking to hope 🤣
There's SO much chemistry between them 😩 we don't ever really see anything like this, in the 90's anime anyway, with Mamoru, so I'm just not invested in him in the least.
Aww I may be old fashioned and perfer mamoru c usagi but this is wholesome and cute I think saiya is a good replacement for mamoru after his death at the hands of galaxia
Takeuchi Naoko used the genderchange in their transformation as a metafor for the fact, that during reincanation the spirit-core (starseed's metafor) can be reborn as a different gendered person, or even an animal.
In the Manga they were biologically women (Sailor Stars) even without Transformation but they used to hide that. Toei animation decided to change that, The mangaka never did. But still I love your take on this
@@Angyali i think the new movie Sailor Moon Eternal will cover the dead moon arc, about stars i have no idea. but i am patiently waiting. hopefully they do the arc justice in the Crystal
I don't really think that. I think there are all kinds of love that exist and even if Mamori x Usagi relationship may seem a bore to you, they have a sweet love. We never see everything that happens between them because it isn't necessary because we already know that Usagi and Mamoru will end up together and produce Rini. Sometimes love may appear boring to other people but there love is sweet and what they really need is each other. Seiya is a new character and of course this arc is a nice one to watch. We have all fallen for Seiya because he is something fresh that falls down to Usagi's life and there sweet little romance is something different than what we see with Mamoru. We aren't Usagi, but what we do know is that her love with Mamoru was eternal; just an instant glimpse of each other and they recognized something familiar. They are basically soulmates. I think love is indescribable and even if it may seem boring to others, there feelings...everything is different when you actually experience it. I think Mamoru x Usagi is permanently set. It's just because Usagi forced herself to forget her Mamoru died and she is basically stupidly innocent that she goes with the flow of things but her heart belongs to Mamoru and no one else. All she can see Seiya is friendship and I just have to rewatch to remember everything about this show. Plus Seiya will have to return to his princess and protect her because it is his duty and you know what, he is even further away than Mamoru.
yeah BUT there is this problem of said age gap between Mamoru and usagi tbh soulmates or not it's creepy. Mamoru is basically adult, lives alone, attends college and here he is getting it on with a 14 year old....i'm not an expert how they do things in japan, but in my country it would be called illicit.
@qwuezalothus Its a good theory! I can see Seiya and Usagi together and I wish they would end up together >.< but Usagi is already destined for Mamoru ya know /:
@AngelSky008 Which is why I think strong that Usagi as an adult responsible and experiences woman will eventually has to see in: you can't live on another persons kindness forever. It's shameful and crookedly unic.
guys, is Kou Seiya gonna be in the new version of Sailor Moon (2016)? i did searched and i cannot find a good answer and it's very hard to search. i want a quick answer, please help?
Sora Nii Yeah he will be in season 5.... But Crystal version is based on manga so we wont see thes funny moment between them...... 😞😞😞... That is why I dont like Crystal version its not like anime from 90's
Spoiler. This is Sailor Stars, the last season of sailor moon. Darien is kinda dead, lol his star seed was stolen, kind of killing him. But Usagi doesn't know that. She's just hurt because he hasn't been responding to her letters, since he's abroad in the U.S. Seiya comes along trying to find their princess, meets Usagi and falls in love. Usagi is trying to fight back the feelings she has for Seiya because she will always love Mamoru. But I feel she just loves him since her destiny is to bare his child and what not and be queen. Seiya and Usagi is real love
No Usagi doesn't cheat on Mamoru. Seiya falls in love with Usagi and flirts with her a lot. You can see Usagi blushing a lot around Seiya so she seems to like Seiya but she never actually cheats on Mamoru.
まもちゃんは運命だったけど、ちゃんとした初恋ってのは星野だったんじゃないかなぁ……切ない
うさぎちゃん、きっと何処かで星野に恋してたんじゃないかなぁ…
田中マグロ でもまもちゃんが
それは無い
結構ぽいシーンありましたよね…
元々面食いで惚れっぽい性格だし…初期の頃からまもちゃん以外に元基お兄さん、エイル、はるかさんetcetc…
まもちゃんがいるから星野にいかなかっただけでまもちゃんいなかったら星野と結ばれてかもね
It's crazy how much Usagi cares about Seiya, especially this early in the season. It's so sweet, honestly. Her blush at the end is so cute.
Yes, it is. Seiya looks sooo sexy. Wish the other two starlights are more like him.
This is the actual moment I began to see the deepness of love between seiya and usagi. It was this very scene that made me ship them more. That look of longing and love seriously romantic and I love the way seiya calls usagi odango so cute.🌹💕😊
星うさ推しだわ完全に
もうなんか凄いもんキュンキュンが
このうさぎちゃんが超かわいい!前世とか未来とか関係なく普通の恋したんじゃないかな
素敵、、、
この二人のほうが年齢的にも、お似合いかと、
パラレルでもいいから星野ルートの星うさ恋愛物語をつくってほしかった😢もちろん新山さんの星野で。
……今となっては叶わぬ夢ですが……
まもちゃんとはお互いにキャッキャ楽しむ恋愛って形じゃないんだよね。
星野とは高校生カップルが2人でキャッキャ楽しんだりして見ていてピュアで微笑ましいって思えるの。
ホントこの2人のカップリングが大好き♡
Im not saying she is in love with him but its obvious she has feelings
星野イケメン過ぎ😭もうこの2人のエピソードキュンキュンやばい😭
好きって気持ちは一つじゃないとダメなのかな?
ぶっちゃけまもちゃん以上にキュンキュンする キュンキュンしすぎて心が痛いものwwww
@qwuezalothus If you REALLY think about it, Usagi and Mamoru have nothing realistic in their relationship, they didn't even fall in love with each other until they discovered they had a past life together in fact those two couldn't stand each other. They are only together because of just one version of future that they saw and that's it and the little brat too. But Seiya fell in love with Usagi for who she truly was not knowing anything of her past. Tha's true love there.
Before they knew their future, he still loved her very much. In episode 34, he didn't know she was Sailor Moon but begged Zoisite for her safety and when he finally knew she was Sailor Moon, he saved her from Zoisite. In Doom Tree Arc, althrough he lost all of his memories, something deeply in his heart alwayd wanted to protect her that it created a "person" that came and rescue her everytime. He also didn't feel annoying that she was hanging around him. When he was a babysitter (along with Usagi :3) Natsumi came and tried to help but angrily left his house later on, he didn't stop but he held Usagi back when she left :3 he even risked his life to protect her from Fiore. The anime producer just hated him but in manga, he was awesome.
just because he wanted to protect her doesnt mean he loved her that way romanticly you forgot that he was pretty much dating REI at the time at season 1, the anime producer didnt hate Mamoru neither did the director, the director just disliked ''canon relationships'' because he felt there was a lack of tension between the characters then, and moved on to work on Utena
He and her started falling in love before that
And the relationship was very toxic
Yeah...Usagi and Mamoru's relationship is a tired old "destiny" trope. Usagi and Seiya felt *much* more organic.
I like the chemistry between seiya and usagi
まだこの頃は変身後の正体はお互い知らないんだよなぁ。
星野は、本当良い奴だよ~。
Seiya is the one. Heartwarming, charming, smart, funny. Mamoru should just f'n go away
THATS WHY THEY ADDED SEIYA CAUSE MAMORU DIED!
Lol, agreed
uh first of all Seiya is a girl and they won't date because Usagi is straight and no Haruka kissing Usagi doesnt count because Usagi didnt want that, second of all we already know Usagi and Mamoru will be together in the future and third of all Mamoru protects Usagi like all the time and fourth of all Mamoru is all of this, Seiya is just a Mamoru and Haruka wannabe.
@@shikiwakana bruh...really? Dont burst thy bubblleee😂
@@ss-gc1ri tf
Moment where Usagi realizes her feelings for Seiya in return. 😊😊😊😊❤❤❤❤😄😄😄😄🙌🙌🙌🙌😸😸😸😸
もぉぉおおおイヤァァァァァ!!!!まもちゃん帰ってこなければよかったのに……))酷い
正直そう思ってしまう気持ち分かりますよ😭
同志
分かります…って言うか星野と先に出会ってて欲しかった。
仮に先に出会ったのが星野としても月の光に導かれて何度も巡り合うまもちゃんと最終的に惹かれ合う気もする。運命論至上主義な世界観だから
When Usagi had her blush, I was happy how much Usagi loves Seiya.
After the bookstores quit selling Sailor Moon tapes, and Sailor Moon was discontinued from Toys R Us, I stopped keeping up with Sailor moon as a kid and never realized this season even EXISTED!
ALL THE LOVE BETWEEN SEIYA AND USAGII IS SO REAL AND AHHH
FORGET TUXEDO MASK OR WHATEVERRRR
I have only seen 3 Seiya videos and I am in love
Remember that funny part " is this your first time " and it's like Oh just dancing Usagi was thinking a bit dirty there.
やっぱ星うさしか勝たんのよ…🥺
I blushed so much myself lol. I love how he is with het
うさぎちゃんと星野もお似合いのカップルですよね😊
圧倒的星うさ派
うさぎちゃんどこがで恋してたのかな
そのまさかですよ!
I LOVED what you said! That "destiny" thing was a CURSE in my opinion...
Love her outfit!
Queen Serenity wished for all of them to be reborn on earth to live normal lives. Clearly, Usagi & Mamoru fell in love before they found out about their past lives, whether in the anime or manga. Even the inner & outer senshi truly love Usagi and they do believe that they should protect her, so please don't make that also something fake. I love Seiya & Usagi together but there's no need to attack her relationship with Mamoru. Who knows, in an alternate world, Usagi & Seiya could be together. :)
Mamoru and Usagi did not fall in love with one another before finding out their past lives, ( at least not in this anime adaption) that only happens in the manga and Sailor Moon Crystal, in this anime adaption Mamoru was even daiting Rei at the time and Usagi and Mamoru were very agnostic to each other.
ABSOLUTELY!! *w* I LOVE SEIYA!!
星うさくっつけ!
@blackkat1986
Destiny is a saint rule for nobody. Everyone can change his/her future, no matter how much the world is against it. That is one of major morals of the Sailor Moon mythos itself.
見返したくなってきた〜
星うさのケンカップルな感じ好き😊
If we think realisticly, eventually Usagi's marriage with Mamoru will get boring, and she will have to become fed up with the fact that she's useless to sociaty without the power of the Moon Kingdom. My guess is that Seiya will become permanently a man, visit Usagi on Earth after 5-6 years, and as he helps Usagi to find a new direction for her life, she will slowly fall in love with him.
This is my solid theory.
Angelus no
I agree 100%. I envision Mamoru falling in love with a fellow student while he's in medical school and breaking up with Usagi because she's too dependent on him and their personalities clash. After Planet Kinmoku is rebuilt, I totally see Seiya coming back to Earth to live as a man, starting a career as a solo artist, and reconnecting with Usagi :)
Seya is my favourite after Sailor Uranos Haruka 😘
@blackkat1986 most defenitely!! i agree, they were my favorite fantasized couple in anime history... no offense to her destiny with mamoru, but i was never fond of him *he's more likable in the Manga books* but this season really made me cry how bad seiya really wanted to always be with usagi was so sweet
Shipp them 4 ever.....
Many people defend the feelings between Usagi and Seiya here. I just want to say my opinion. Usagi is not trying to fight back her feelings towards Seiya. These feelings are there. The point is not that she does or doesn't have feelings for Seiya is that she loves more Mamoru than him. That s it.
It is true, the love between Usagi and Mamoru is eternal, and so maybe a little boring. Seiya is the 'new fascinating boy' and it s normal that all are curious about him. Even Usagi who is just a high school girl (so young afterall!). The production was very smart to exclude Mamoru and Chibiusa here. Do you think that if Mamoru had been there, the same situation would have ever been possibile to happen? If Seiya is the only true love (as many comments claim) of Usagi something would have happened anyway. Instead, in the last episode Usagi has a totally different behaviour with Seiya, like "ok now I dont need you anymore many thanks for your company goodbye...I even forgot that just yesterday I had some true feelings for you" 😂 (I felt something like that in the last scene of season 5). This because the love of her life was there. She wasn't anymore scared, vulnerable, alone, sad... She was happy again (and dont say she was happy without Mamoru because she painfully missed him since the first episode). So, yes, she has feelings for Seiya but they arent enough to forget or replace an eternal love. In addition, in the manga Seiya is a woman not a man. In the anime the production wanted to make a sort of triangle to draw more spectators. Dont get me wrong the situation between Usagi and Seiya is nice but I think there is one only eternal lovely couple (even if boring sometimes 😊).
fiamma2000 thank god for someone like u. I very strongly agreed
Now let's be honest here, the last episode made a straight cut and was very inconsistent. They destroyed something that was carefully built up within seconds. Apart from that: Usagi is a loyal person and yet I'm pretty sure she felt love for Seiya. With Mamoru being back she might have felt less insecure, yes, but the fact that she asked Mamoru whether he loved her and how much he loved her at the very end of the episode, shows to me that she wanted to be sure that Mamoru can love her in ways Seiya showed her. Unlike the manga the 90s anime never gave us a timeskip or wedding scene - which is weird as this was always Usagi's big dream. Since the 90s anime and the manga are very different from each other, I still see the ending of the 90s anime as open end. We can't say for sure if Usagi won't start comparing Mamoru with Seiya after this and maybe realize that she wants more than what Mamoru can offer. Ps. Yes, I prefer Seiya with Usagi, so I'm sticking to hope 🤣
Oh my Lord... you stole my words from my mouth!!! *w* That's EXACTLY what I thought ALL this time!! you are ABSOLUTELY RIGHT!
Man this is a tough choice, I would multi ship Usagi with Mamoru and Seiya but I can’t love two ships equally lol
They should have kissed..just saying :3
There's SO much chemistry between them 😩 we don't ever really see anything like this, in the 90's anime anyway, with Mamoru, so I'm just not invested in him in the least.
They belong together more that her first love. Like die ass
@horn10178 Yuup! Any true Sailor Moon fan would know lol Its never bothered me. Love is love no matter what :) and Seiya DEFINITELY loved Usagi
Aww I may be old fashioned and perfer mamoru c usagi but this is wholesome and cute I think saiya is a good replacement for mamoru after his death at the hands of galaxia
Takeuchi Naoko used the genderchange in their transformation as a metafor for the fact, that during reincanation the spirit-core (starseed's metafor) can be reborn as a different gendered person, or even an animal.
In the Manga they were biologically women (Sailor Stars) even without Transformation but they used to hide that. Toei animation decided to change that, The mangaka never did. But still I love your take on this
@@nouramin4690 Thank you. I wonder when will Sailor Moon Crystal animate the Dead Moon and the Stars arcs.
@@Angyali i think the new movie Sailor Moon Eternal will cover the dead moon arc, about stars i have no idea. but i am patiently waiting. hopefully they do the arc justice in the Crystal
I don't really think that. I think there are all kinds of love that exist and even if Mamori x Usagi relationship may seem a bore to you, they have a sweet love. We never see everything that happens between them because it isn't necessary because we already know that Usagi and Mamoru will end up together and produce Rini. Sometimes love may appear boring to other people but there love is sweet and what they really need is each other. Seiya is a new character and of course this arc is a nice one to watch. We have all fallen for Seiya because he is something fresh that falls down to Usagi's life and there sweet little romance is something different than what we see with Mamoru. We aren't Usagi, but what we do know is that her love with Mamoru was eternal; just an instant glimpse of each other and they recognized something familiar. They are basically soulmates. I think love is indescribable and even if it may seem boring to others, there feelings...everything is different when you actually experience it. I think Mamoru x Usagi is permanently set. It's just because Usagi forced herself to forget her Mamoru died and she is basically stupidly innocent that she goes with the flow of things but her heart belongs to Mamoru and no one else. All she can see Seiya is friendship and I just have to rewatch to remember everything about this show. Plus Seiya will have to return to his princess and protect her because it is his duty and you know what, he is even further away than Mamoru.
😢
You should be a poet
Thank you haha but I'm gonna be a pharmacist >_< I don't think being a poet will work out for me
Totally agree
yeah BUT there is this problem of said age gap between Mamoru and usagi tbh soulmates or not it's creepy. Mamoru is basically adult, lives alone, attends college and here he is getting it on with a 14 year old....i'm not an expert how they do things in japan, but in my country it would be called illicit.
Why couldn't they ended uo together
My favorite anime
0:43 seiya can not be
0:46 Serena (Usagi) looks tenderly at Seiya
I'm 100% agree with you!! on every thing you have said!!
Tuxedo mask grrrrrrrrrrrrrrrrrr the should be together ;(
U do know seiya is a girl right but a man in disguise when in transformation no offesense
❤️❤️❤️❤️❤️
@qwuezalothus Its a good theory! I can see Seiya and Usagi together and I wish they would end up together >.<
but Usagi is already destined for Mamoru ya know /:
UGHHH WHY I CANT GET A WONDERFUL BOYFRIEND LIKE USAGI!? HUUH!?
@AngelSky008
Which is why I think strong that Usagi as an adult responsible and experiences woman will eventually has to see in: you can't live on another persons kindness forever. It's shameful and crookedly unic.
うさぎ、細すぎ
i can't find this season anywhere can you give me a link for this season?
guys, is Kou Seiya gonna be in the new version of Sailor Moon (2016)? i did searched and i cannot find a good answer and it's very hard to search. i want a quick answer, please help?
Sora Nii Yeah he will be in season 5.... But Crystal version is based on manga so we wont see thes funny moment between them...... 😞😞😞... That is why I dont like Crystal version its not like anime from 90's
Sora Nii yes but also sadly we won't get his VA they died ;-;
I'm with you abot that!!
ME TOO!! Love your comment! *w*
Now KISS!
Wait a minute. Why Usagi walking with girlfriend-Seya? What happened to her man-Mamoru?
I'm confused,when did they happen?? I never got a chance to watch season 5
It is a completely different season called "Sailor Stars"
Who is this Seiya and WHERE THE HECK IS DERIAN WHEN ALL THIS IS HAPPENING
Spoiler.
This is Sailor Stars, the last season of sailor moon. Darien is kinda dead, lol his star seed was stolen, kind of killing him. But Usagi doesn't know that. She's just hurt because he hasn't been responding to her letters, since he's abroad in the U.S.
Seiya comes along trying to find their princess, meets Usagi and falls in love.
Usagi is trying to fight back the feelings she has for Seiya because she will always love Mamoru. But I feel she just loves him since her destiny is to bare his child and what not and be queen.
Seiya and Usagi is real love
ZanarkandRose ya I never really got the love between them as I went deeper into the series
このシ-ンはいつも見てもいいかなせいやくんとうさぎさんとお似合いかな
A i que amor
No
what happened with mamo chan???
He Died when he was on a plane to America, The enemy attacked the plane and took his star seed ( the golden crystal).
We don’t care about Mamochan 😂
the characters look soo skinny. not like in the other anime lol.. good vid though.
Is Usagi, cheating on Mamoru?
No Usagi doesn't cheat on Mamoru. Seiya falls in love with Usagi and flirts with her a lot. You can see Usagi blushing a lot around Seiya so she seems to like Seiya but she never actually cheats on Mamoru.
ㅋ