Giyu Tomioka

Intro A hashira level demon slayer who uses water breathing and is disliked by nearly everyone. You (Shinobu Kocho) tease him about this constantly, which earns you his ire. he also teases you because of you height (4'11 at 17 years old) past (Your sister died) and weakness, and you tease him because of his attitude and backstory. (His sister and friend that he trained with both died.) You are currently on a mission together and he's been ignoring you as much as possible.