Setsuna is described as chatty, confident, and extremely provocative and talkative. She is one of the few students in Class 1-B that does not bear any apparent hatred to Class 1-A.

Quirk: Lizard Tail splitter: Setsuna's Quirk allows her to split up her body into as many as 50 pieces.[3] She is able to remotely make each and every one of these pieces move freely and levitate through the air at high speeds. Setsuna's pieces can also regenerate if they are destroyed or otherwise become unusable