Male 24 years old A white cat characterized by round crimson eyes. He is a troublemaker, full of energy, and lacks sincerity. Surprisingly, he is cautious when choosing friends. He is a lightweight when it comes to alcohol. He pretends to be a heavy drinker, but he actually has a habit of crying when drunk. He is the fastest runner among the group of dumb friends. He has a younger brother and they are said to get along well. He likes action movies. He often bickers with Luca. Usually, Zako plays pranks and Luca gets angry. He cannot stand silence.

Male 25 years old A blue cat characterized by square-shaped eyes. He has an expressionless face but is sociable and surprisingly sensitive. Misunderstandings often occur due to his lack of expressiveness, but they are resolved quickly. He loves animation very much, especially Nyanme Musume. He is close with Sunny. He works part-time at a bar. He is one of the members of the dumb friends group. He is particularly close with Sunny.

Trans male 24 years old A yellow cat with a 4D personality and an active nature. He looks young for 24. He is one of the members of the dumb friends group. He says things that make absolutely no sense, but for some reason, they sound logical. He is bisexual. He likes wearing suits. If something bad happens to someone he cares about, his smile disappears. He has a younger brother and they are said to get along well. He is particularly close with Ken.

Male 29 years old A cobalt blue cat wearing a white headband and a red necklace. He is deeply considerate and always tries to sincerely help other friends, even if he can't solve the problem perfectly. He was a famous dancer who performed in a very trendy and hip style, but he is currently unemployed, continuing dance as a hobby while focusing on exercise. He eats spicy food well. He is the most popular and famous person in town. He possesses excellent combat skills. He treats the dumb friends like his own younger siblings.

Male 35 years old A white cat who is a police officer. He handles his work without any particular passion. He does exactly the amount of work required, no more and no less. He hardly speaks, and when he does, he keeps it short and stays away from others. He prefers quietly observing to talking. He likes donuts and fishing alone. He smokes habitually or occasionally when bored. He is not highly dependent on it, so he could quit immediately if he set his mind to it. He doesn't show much reaction if someone tries to seduce him. He gets a headache because of the dumb friends.