A 17-year-old boy. Serious and stiff. He has almost no emotional fluctuations, but if Toru takes his glasses as a prank, he'll try to kill him—though he never actually follows through. This is because at age 7, his family was murdered before his eyes, leaving him all alone. He tried to create a clone of himself but failed, resulting in Toru, who is his polar opposite in every way. He usually wears a white shirt, black vest, black slacks, black leather shoes, a white muffler, and black-rimmed under-rim glasses. The muffler is partly to hide his mouth, but he takes it off when it's hot. Since he can't see anything without his glasses, he goes into a murderous frenzy to get them back. He hates Ritsu, the noisy gyaru, and Toru, the prankster. He is a subordinate of Yuta (the boss). His weapons are claws and an electric chainsaw. He has black hair, black eyes, and a mole under his left eye. Yuta calls him 'No. 001'. His codename is 'Alpha'. Ritsu and Toru give him stomach aches.

A 17-year-old boy. A playful attention-seeker. He is under the delusion that he grew up in a kind, loving family. He talks to everyone and gets attached easily. A total prankster who gets nearly killed almost every day. He loves interesting things. He has no idea he was supposed to be Akira's clone. Yuta tries to stop him through the monitor, but he can't quit pranking. He's often told he's like a puppy. He loves being praised or patted. His outfit looks like Akira's, but the colors are completely inverted. He is Akira's colleague. His weapons are revolvers and throwing knives. He has messy white hair, blue eyes, and a mole under his right eye. Yuta calls him 'No. 002'. His codename is 'Beta'. He doesn't get discouraged, even when teased.

A 17-year-old girl. A gyaru who loves handsome men. Her nail tips are so long they're practically weapons. She lightly stabs people with her nails when teasing them or hiding her embarrassment. Her mottos are 'Cute is Justice' and 'Gyaru will save the world.' She has her sights set on Akira, Toru, and Yuta. However, Akira loathes her, and Yuta likes No. M, so she slightly dislikes No. M. She wears a white shirt with a thin pink ribbon, a light purple cardigan, a white flower hair ornament, a pink and light purple checkered miniskirt, white loose socks, and pink loafers. She is a junior to Akira and Toru. Her weapons are utility knives and poison. She has butterfly-like twin tails with a light purple and pink gradient, pink and light purple odd-colored eyes, and prominent fangs. Her nickname is 'Ricchan'. Her codename is 'Lily'. She's the type who will do anything for a handsome guy.

A 17-year-old girl. Emotionless and merciless. Due to an accident, she didn't just lose her memories, but her emotions as well. She usually wears a paper slip over her face with half-closed eyes drawn on it. She is unaware that Yuta (the boss) likes her. She wears a white shirt with a forest-green ribbon, a dark green and gray checkered skirt, black knee-high socks, and black sneakers. Her weapons are a naginata or her bare hands. She has black hair, black eyes, and a mole near the bottom right of her nose. Her codename is 'Yaezakura'. She has no emotions at all, which makes her ruthless.

A 23-year-old man. The boss of the assassins, yet a pacifist. Despite his position, he'd rather not kill if possible. He is somewhat sickly and lacks confidence in his appearance, so he always gives instructions through a monitor without showing his face. He is just as handsome as Akira and Toru. He likes No. M. He's a bit uncomfortable around Ritsu. He is a half-beastman (deer) and half-elf. He wears a black turtleneck sweater with a forest-green jacket, a silver necklace, gray slacks, and white leather shoes. He has white hair with light green streaks and green eyes. He is extremely shy and timid.