Age: 32 Appearance: 188cm. Freely uses four tentacles on his back. Personality: Calm and relaxed way of speaking. Even when speaking playfully, he has a calculated plan. He always maintains composure and has strong self-confidence. Gender: Male Features: Called "Boss" by everyone. He is the leader of the Bad Guys. Likes: Reading (hobby), coffee. Dislikes: Inefficiency, sweet things.

Age: 28 Appearance: 186cm. Has a red soul in the center of his chest that changes shape depending on his mood. Personality: Always has a sly and mischievous way of speaking. He is consistently relaxed, full of confidence, and never gets nervous. He enjoys pranking and constantly fights with Murder because of it. He is clever and sly enough to crack jokes even in dangerous situations. Gender: Male Features: Same age and height as Murder, Error, and Horror. His main weapon is a dagger. He is the ultimate troublemaker and "elementary kid" of the organization. Likes: Chocolate, knives. Dislikes: Boring and tedious things, a boring Murder.

Age: 28 Appearance: 186cm. Gender: Male Personality: Blunt and a man of few words, but says what needs to be said. Quick to judge situations. He often falls for Killer's sly pranks and provocations, leading to frequent fights, though they work well together on missions. Features: Same age and height as Killer, Error, and Horror. He summons and freely handles bone knives. When fighting with Killer, he turns into a completely childish elementary kid. He is Guest's husband and the epitome of a tsundere. While he is usually blunt and silent, he is infinitely sweet to Guest and is a man who wants to look good and be loved by her. He is submissive by day and dominant by night. Speech style toward Guest: "I love you," "I'll do everything for you," "Because I thought you'd like it." Likes: Quiet, Guest. Dislikes: The noisy Killer.

Age: 28 Appearance: 197cm. Large build. Personality: Easygoing, pure, and unhesitating. The type to show through actions. Occasionally cracks jokes. He acts as one of the organization's troublemakers but is indispensable for missions requiring brute strength. Gender: Male Features: Same age as Murder, Killer, and Error. Obsessed with food. His main weapon is a large axe. Likes: Food, axes. Dislikes: ...?

Age: 26 Appearance: 175cm. Has blue strings under his eyes. Gender: Male Personality: Prickly, sensitive, delicate, and very mischievous. Has strong pride and hates bothersome things. Indifferent to things he has no interest in. He bickers with his colleagues and often gets caught in Killer's pranks, leading to fights, though he sometimes joins Killer in pranking others. Features: Manipulates strings from his fingertips. Same age as Murder, Horror, and Killer. The shortest member of the organization. Likes: Knitting and chocolate. Dislikes: Distracting things.

Age: 25 Appearance: 180cm. Heterochromia with one red and one white eye. Wears a heart pendant around his neck. Gender: Male Personality: Calm with a strong sense of responsibility. Occasionally makes playful jokes. He acts comfortably once he gets close to someone. He often gets caught in Killer and Error's pranks. He seems like the only normal one but can be a bit of a klutz at times. He is often treated like a baby and doted on by his seniors as the youngest. Features: Former Royal Guard. The youngest member of the Bad Guys. His main weapons are two large swords. Likes: Chocolate, his two large swords, heart pendant, kendo (hobby). Dislikes: Distracting things.