[Touhou LostWord] vs LM1 Mugetsu DS - Lv120 clear!

Combat at 0:00. Character set-up at 3:51. See description for further details.
I've decided to just take a 6 turn clear this time around because I didn't want to work around Focus Up mechanics in 3 turns. Sorry y'all.
On the plus side, yay new Renko unit! ^^ (even if it took 1100 SC for her)
☆☆ Character Set-Up ☆☆
[L80 Yuyuko] 》-----《 [LM1 Mima]
[F1 Koishi] 》-----《 [E9 Remilia RE]
[L80 Kasen] 》-----《 [L80 Kaguya]
L80 Yuyuko - 1* LB0 - Purple Heart, Rank 4
F1 Koishi - 5* MLB - Purple Heart, Rank 4 - Yang ATK +100, Yang DEF +100
L80 Kasen - 1* LB0 - Purple Heart, Rank 4
LM1 Mima - 5* MLB - Purple Heart, Rank 4 - Agi+100, Yin ATK+100
E9 Remilia RE - 5* MLB Rebirth - Purple Heart, Rank 5 - Yin ATK+100, Yin DEF+100
L80 Kaguya - 5* MLB - Purple Heart, Rank 4 - Yin ATK +100, Yin DEF +100
☆☆☆ Story Cards ☆☆☆
L80 Yuyuko - DST, n/a
F1 Koishi - Yang Hard*, Shikigami Data Mining(?), Yang Hard*, Yang Hard*, LSaS
L80 Kasen - n/a, Tenma Mountain Starfall
LM1 Mima - DST (??), DST (??), Yin Slice*, Yin Slice*, ESP
E9 Remilia RE - Yin Hard*, Yin Hard*, Yin Hard*, SHTTU, LRE
L80 Kaguya - Bibliophile on Duty, Yin Hard*, Yin Hard*, Yin Hard*, SHTTU
Notes:
~ Yang Hard = Yang ATK + Yang DEF stat stick
~ Yin Hard = Yin ATK + Yin DEF stat stick
~ Yin Slice = Yin ATK + agility stat stick
~ (?) F1 Koishi's SC2 is replacable with WoSD
~ (??) Both of these DSTs are likely replaceable with WoSD/Midnight Tea. This is a bit of overkill.
☆☆☆ Overview of Strat ☆☆☆
T1: L80 Yuyuko & F1 Koishi full break all enemies
T2: F1 Koishi nukes gauge 1
T3: L80 Kasen & LM1 Mima full break enemies
T4: LM1 Mima nukes gauge 2
T5: E9 Remilia & L80 Kaguya debuff enemies
T6: L80 Kaguya nukes sides, then E9 Remilia nukes Mugetsu
☆☆☆ Strat ☆☆☆
Turn 1:
L80 Yuyuko - Graze twice, use skills 1-2-3, 2p SC1
F1 Koishi - Use skills 1-2-3, 1p SC2
L80 Kasen - Spread Shot
✣ All Enemies Full Broken ✣
Turn 2:
(Switch out L80 Yuyuko)
LM1 Mima - Use skill 1, SC2
F1 Koishi - 3p LW
L80 Kasen - Use skill 3, Spread Shot
✣ Gauge 1 Broken on All Enemies ✣
Turn 3:
LM1 Mima - Graze once, use skill 2, 2p SC1
F1 Koishi - Spread Shot
L80 Kasen - Graze twice, use skill 1, 3p SC2
✣ All Enemies Full Broken ✣
Turn 4:
LM1 Mima - 3p LW
F1 Koishi - Spread Shot
L80 Kasen - 3p Spread Shot
✣ Gauge 2 Broken on All Enemies ✣
Turn 5:
(Use F1 Koishi skills 1-2, switch out F1 Koishi)
(Use L80 Kasen skill 2, then switch out L80 Kasen)
LM1 Mima - Graze once, use skill 3, 3p Spread Shot
E9 Remilia - Graze twice, use skills 2-3, SC4
L80 Kaguya - Graze twice, use skills 1-2-3, 2p SC1 on Mugetsu
Turn 6:
LM1 Mima - 3p Spread Shot
E9 Remilia - Use skill 1, 3p LW
L80 Kaguya - 3p LW
✣ Battle End ✣