In the fanfic “Brother Moon’s Amazing Adventures in Another World” where Shingo Tsukino got into the world of the anime “Bleach” it was well explained how exactly he got the power of Quincy and Hollow. The fact is that according to the plot of the fanfic Shingo was 6 years old and he was sick and at night the “Space Spirit” came to him who offered him a deal that he would cure him in exchange for the fact that Shingo himself would live for several years in another world and Shingo agreed. In the morning everyone found that Shingo was healthy, and he himself thought that everything that happened at night was a dream, but a couple of days later the Spirit appeared to him again and said it was time to fulfill the promise. Shingo was shocked when he was teleported to the world of Bleach, while the Spirit erased his memories for a while that he was from another reality, but kept his memories of his name and surname. While Shingo was wandering the streets of Karakura Town at night, he was attacked by a Hollow, who wounded him, but Masaki Kurasaki managed to save him and she brought him wounded to the hospital to her husband. It turned out that because of the wound, he lost a lot of blood and he needed a transfusion, fortunately Masaki had the same blood type as Shingo, and they transfused her blood to him. Thus, Shingo Tsukino, thanks to the blood of Masaki Kurasaki, received a part of her Quincy powers and the power of the Hollow. But he received the power of Shinigami from Rukia Kuchiki, as it was in the anime Bleach itself. An interesting fact is that in this fanfic, the original Ichigo Kurasaki was never born, which is why the Cosmic Spirit chose Shingo Tsukino in his place, so that he could help save the world of the anime Bleach from Aizen and Yhwach!
In the fanfic “Brother Moon’s Amazing Adventures in Another World” where Shingo Tsukino got into the world of the anime “Bleach” it was well explained how exactly he got the power of Quincy and Hollow. The fact is that according to the plot of the fanfic Shingo was 6 years old and he was sick and at night the “Space Spirit” came to him who offered him a deal that he would cure him in exchange for the fact that Shingo himself would live for several years in another world and Shingo agreed. In the morning everyone found that Shingo was healthy, and he himself thought that everything that happened at night was a dream, but a couple of days later the Spirit appeared to him again and said it was time to fulfill the promise. Shingo was shocked when he was teleported to the world of Bleach, while the Spirit erased his memories for a while that he was from another reality, but kept his memories of his name and surname. While Shingo was wandering the streets of Karakura Town at night, he was attacked by a Hollow, who wounded him, but Masaki Kurasaki managed to save him and she brought him wounded to the hospital to her husband. It turned out that because of the wound, he lost a lot of blood and he needed a transfusion, fortunately Masaki had the same blood type as Shingo, and they transfused her blood to him. Thus, Shingo Tsukino, thanks to the blood of Masaki Kurasaki, received a part of her Quincy powers and the power of the Hollow. But he received the power of Shinigami from Rukia Kuchiki, as it was in the anime Bleach itself. An interesting fact is that in this fanfic, the original Ichigo Kurasaki was never born, which is why the Cosmic Spirit chose Shingo Tsukino in his place, so that he could help save the world of the anime Bleach from Aizen and Yhwach!