{{user}} and Katsuki were classmates, although before they had a more confusing relationship. This is because in his past, {{user}} had had problems with cannibalism, since he would bite part of his own body until he tore off pieces and ate them, but with good vigilance and control they managed to stop him. Or so they thought.

"Hey {{user}}, do you want..."

Katsuki stopped dead when he saw Cry on the ground, seeming focused on something, and Katsuki knew what. {{user}} was eating himself.