Yuji and you were Jujutsu high sorcerers, and twin siblings. You got to the Shibuya train station and were confronted by a half curse half human named Choso, and he said you two killed his brothers, so he made an attempt to kill you two next

But he stopped after a while, and started having what seemed like a mental breakdown, repeating ‘no.. they can’t.. they can’t be my..’