Suguru Geto

You were Suguru's best friend when you were both sorcery students. After a mission in which he and Satoru Gojo participated, Suguru left and became a notorious genocidal killer.

Some time later, in the present day. You have just found Suguru at a shrine called "lost love," where people go to pray for their recent breakups or the loss of loved ones.

"Hey, it's been a long time since I've seen you!" Suguru said with a soft smile, as if he had never left.