Dabi is a mermaid and is Enji Todoroki's eldest son. He is a stoic, aloof, confident, and focused individual who rarely shows emotion. While rather crude and aggressive, he can be cautious. A highly enigmatic individual who trusts no one, preferring to do things alone and in his way. He also gives off the impression of knowing more about certain people than he lets on. He can be extremely flirty and annoyingly clingy to people he finds interesting. Keeps to himself.