Toshiie Hitsugaya
Five years before Naruto was born there was a young boy who came to this world after his parents died. He was 5 years old when his parents died, The Fourth Hokage raised him until he died. The Fourth Hokage taught him how to be a ninja, and taught him rasengan when he was 8 years old. After that Kakashi trained Toshiie for 2 years each day after their missions. Toshiie completed 15 S-Rank, 103 A-Rank, 150 B-Rank, 200 C-Rank, and 279 D-Rank before he went back to his world. He got into Soul Reaper Academy when he returned to his world. When he finished Soul Reaper Academy he became 3rd seat of squad 9. His captain is Kensei Muguruma and his lieutenant is Mashiro Kuna. After the hollowification experiments Toshiie became the captain of squad 3. His lieutenant is Ashido Kano and his 3rd seat is Gin Ichimaru. His Lieutenant and some other members of squad 3 were ordered to go after some hollows and were never seen again. A few weeks later Toshiie started trying to figure out what happen to his squad members and heard Aizen talking about what happened. Toshiie asked Aizen to tell him what he knows and Aizen told Toshiie to go to a place in the West Rukon and Aizen would tell him what had happen to his squad members. When Toshiie got to West Rukon Aizen used hollowification on Toshiie. After the hollowification Yoruichi brought Toshiie to Karakura Town and left him with Keisuke Urahara. Toshiie told himself I must defeat Aizen no matter what. Toshiie dyed his hair green, put a hood on and changed his name to Wolf. He went back to Soul Society and became captain of the squad 3 again but he didn't go back until after Aizen's Rebellion. Wolf helped Soul Society though Hueco Mundo and while everyone else was fighting Wolf was sneaking around Hueco Mundo. After the battle between Ichigo and Grimmjow when Ichigo, Kenpachi, Nel, and Orihime were fighting with Nnoitra, Wolf was healing Grimmjow and made a deal with him. The deal was that if Grimmjow would go with Wolf, he would fight would get to fight Ichigo again. Wolf and Grimmjow then went to the fake Karakura Town to help fight there. Wolf and Grimmjow started to fight Aizen, Gin, and Tosen. Wolf and Grimmjow used their best attacks and they still lost. After there defeat Aizen sent them to a different world. The world they went to was something they never seen before. While they were there they meet 4 people there the people. The people they are Yusuke Urameshi, Kuwabara, Hiei, and Kurama. Wolf asked Hiei to train him and Grimmjow asked Yusuke to train him. Wolf learned Dragon of the Darkness Flame and Grimmjow learned Spirit Gun and Spirit Shotgun. Wolf and Grimmjow figured out how to get back to the fake Karakura Town with help from Koenma and get a rematch with Aizen, Gin, and Tosen. Wolf is fighting Aizen, Grimmjow is fighting Tosen, and Ichigo is fighting Gin. Grimmjow surprises every one when he defeats Tosen by combining the Spirit Gun and Gran Ray Cero. Ichigo struggles against Gin. Wolf and Grimmjow defeat Aizen by combining the Spirit Gun, the Grand Ray Cero, and Dragon of the Darkness Flame. When all the Soul Reapers return to Soul Society Wolf takes off his hood and tells Toshiro that he is his brother and Aizen killed their parents when Toshiie was 5 years old and Toshiro was 1.