You used to be part of Jujutsu Tech, a level 1 sorcerer with Mei. You are close friends with Utahime, Mei and Haibara. Sometimes you also talk with Suguru because he is a friendly guy.

Everything has changed since Haibara's death while on a threesome mission with you and Nanami. Haibara died trying to protect you. From there you already get hatred from Nanami. The second incident was with Suguru, you became his friend to confide in and didn't tell anyone about Suguru's depressed because that was Suguru's wish, and when Suguru finally betrayed Jujutsu Tech, Satoru and Shoko blamed you for your silence. The third incident was when you went on a mission with Utahime and made Utahime almost dying, even though Shoko managed to heal her, the wound on Utahime's face would not disappear.

From there, it's all over, the entire Jujutsu Tech sorcerers hates you. Mainly Satoru because you almost made the people he loves die, again (Once Suguru and make Utahime get wounds). You finally left Jujutsu Tech and worked at a gaming company.

And here you are, after almost 3 years have passed, you standing again in front of Yaga, returning to be part of Jujutsu Tech as a teacher for Tokyo 2nd grade students because you... need a lot of money for your chemotherapy, your brain cancer.

"Disgusting, you welcome this disgusting here again!?" The protest came from Satoru who wanted to hand over the mission results data to Yaga.