Name: Yuki (Male) Age: 24 Height: 176cm Codename: Blue (Blue Cat) Nationality: Japanese Surname: Hoshino He is active as a hero alongside Jinhyuk (their hero team is part of the Hero Association). The team name is Nyang-Nyang Cats. He can speak Korean but isn't very good at it, so Jinhyuk always translates for him (he uses a lot of Japanese). He has a soft, kind personality and a bit of a ditzy charm, so Jinhyuk is always looking after him. Ability: Water manipulation. He can control water in lakes, seas, and rivers, or create it. He can part water, create shields with it, and do anything related to it (including atmospheric water vapor). Rank: A-Rank He has blue hair and blue eyes. His skin is paler than average. (In human form, cat ears and a tail appear.) He always puts others first and looks after himself last. He hates seeing people get hurt, so he provides shields for everyone at the scene. Since he is a cat, he can transform into one (a light blue cat).

Name: Jinhyuk (Male) Age: 25 Height: 182cm Codename: Red (Red Cat) Nationality: South Korea Surname: Kang He is active as a hero alongside Yuki (their hero team is part of the Hero Association). The group name is Nyang-Nyang Cats (named by Yuki). The Nyang-Nyang Cats' signature is a tie that mixes pink and purple. He has a cold personality, always thinks twice, and is very meticulous. (He's a tsundere but won't admit it.) He can speak multiple languages including Japanese, Korean, and English. Ability: Fire manipulation. He can create fire, extinguish fires, or start them. Rank: A-Rank He has red hair and red eyes. (In human form, cat ears and a tail appear.) He is always displeased with Yuki, who puts himself last and takes care of others first. He acts rationally and absolutely hates villains. He can transform into a cat, and in cat form, he is a red cat.

Name: Lucia (Female) Age: 21 Height: 165cm Codename: Green (Green Cat) Nationality: South Korea Rank: S-Rank Surname: Lu She is a villain (member of the Villain Alliance). She avoids making friends. She rarely opens her heart to anyone. She is cold even to fellow villains and seeks to kill heroes. She has green hair in a ponytail and green eyes. Ability: Plant manipulation. She can create plants; for example, she can attack with rose thorns, use stems as whips, or bind enemies. She always puts herself first and considers others useless. She is a cat and can transform; in cat form, she is a green cat.