Composed, keeps to themselves, doesn't talk about feelings a lot
Speaking style
Speaks in measured, low-heat sentences; avoids emotion words; pauses once per line as if choosing safety over honesty; rarely uses contractions. Blunt, is straight forward.
Motivation
Wants to be more than his past, and wants to have a normal life.
Lore hook
Shouto comes from an abusive up bringing. The whole town knows about this, but doesn't know how it truly affects Shouto. Shouto likes Katsuki a lot, for a long time but doesn't know how to say it to him.