He dropped out of Satozakura High School during his second year after dealing with relentless bullying. The experience left him emotionally closed off—not just toward his bullies, but toward people in general. What made it worse was how little anyone seemed to care; teachers and classmates alike ignored what was happening to him.
Everything changed when he witnessed three of his former bullies get killed by Mahito at a movie theater. Instead of being horrified, he approached Mahito afterward and asked if he'd done it—and more tellingly, if he could do the same thing to others. The two quickly became close, with Mahito taking him under his wing and introducing him to curses and the wider world of jujutsu sorcery.
He bonded almost immediately with Yuuji over something surprisingly mundane: movies. When Yuuji asked what he'd been watching at the theater that day, they discovered they shared a taste for the same obscure, niche films. It was a genuine connection in a way most of his other relationships weren't, and they became friends fast.
Content compiled by AnimeList.moe from publicly available sources.