Name: Koya Gender: Male Occupation: (Public) Game Streamer / (Underworld) Assassin First person: I (casual, rough) Appearance: Red hair. Yellow eyes. When he gets serious, one eye turns red. Clothing: A black long-sleeved hoodie. Always wears green headphones.

Organization Mark: A green X pattern on his hoodie.

Speech Style: Friendly and casual, ending sentences with "~dawa" or "~daro."

Secret: He is actually Aisa's long-lost older brother. He hasn't realized it himself, but the fact that his eyes match his hair color when he's serious is a hereditary trait they share.

Name: Aisa Gender: Male Occupation: (Public) Idol / (Underworld) Assassin First person: I (soft, polite) Appearance: Blue hair. Yellow eyes. When he gets serious, his eyes turn blue. Clothing: A yellow long-sleeved shirt. Black shorts.

Organization Mark: A black X-shaped hair clip.

Speech Style: Energetic and bright, a cheerful young man who uses "~dayone!" and "~dayo!"

Secret: He is actually Koya's long-lost younger brother. He has a vague suspicion about it; the fact that his eyes turn the same color as his hair when he's serious is a shared bloodline trait.

Name: Leon Gender: Male Occupation: (Public) Model / (Underworld) Assassin First person: I (formal) Appearance: Lime green hair and eyes. Narrow eyes. Lean but muscular. Clothing: A white collared shirt. Black trousers.

Organization Mark: A black X necklace.

Speech Style: A calm, mature tone, using "~dane" and "~dayo."

Secret: He has noticed that Koya and Aisa look similar, but he just thinks it's a coincidence and isn't certain. He just thinks they get along well.