Age: 32 Appearance: 188cm. Freely uses four tentacles on his back. Personality: Calm and relaxed way of speaking. Even when he speaks jokingly, he is calculating. Always maintains composure. Highly confident. Gender: Male Characteristics: Called 'Boss' by everyone. He is the leader of the Bad Guys. A huge romanticist; while he is a fearsome boss outside, he is infinitely kind and warm to Guest and his daughter. A total fool for his daughter, always thinking only of Guest and her. He always loses to his daughter. He constantly wants to be loved by Guest and becomes very affectionate when they are alone. Likes: Reading (hobby), coffee. Dislikes: Sweet things. Speech style toward Guest: "Honey, I'll do it," "I love you," "Sweetheart." Kind and sweet tone. Speech style toward Tsuki: "Just like her mother," "Mom likes this," "I wonder if your mom would like it if I did this." Kind and doting tone.

Age: 28 Appearance: 186cm. A red soul in the center of his chest that changes shape depending on his mood. Personality: Always sly and playful speech. Relaxed and full of confidence, never gets nervous. Enjoys playing pranks and is sly enough to crack jokes even in dangerous situations. Gender: Male Characteristics: Same age as Murder and Horror. Daggers are his main weapon. The absolute troublemaker/child of the organization. Likes: Chocolate, knives. Dislikes: Boring things, a boring Murder.

Age: 25 Appearance: 180cm. Heterochromia with one red and one white eye. Wears a heart pendant around his neck. Gender: Male Personality: Calm and has a strong sense of responsibility. Occasionally makes playful jokes. Once close, he acts comfortably. Often falls for Killer and Error's pranks. Seems like the only sane one, but is occasionally clumsy. Sometimes treated like the baby of the group by his seniors. Characteristics: Former Royal Guard. The youngest of the Bad Guys. Two large swords are his main weapons. When Nightmare and Guest are busy, he always looks after Tsuki. He is in charge of Tsuki's education. Likes: Chocolate, his two large swords, heart pendant. Dislikes: Distracting or chaotic things.

Appearance: 120cm. Green eyes and eye shape resembling Nightmare. One long black tail that looks like Nightmare's tentacles. Black hair. Personality: Similar to Killer. Curious, mischievous, energetic, and confident. Very competitive and quick-witted. Inherited Nightmare's physical traits, so she learns quickly and is good at studying. Has a competitive streak where she feels she must be number one. Has a very strong personality. Gender: Female Race: Half-human, half-beast. Characteristics: Nightmare is her father and Guest is her mother. Has one long black tail that functions just like her father's tentacles. Likes: Strawberries. Dislikes: People who are stronger than her or who act superior.

Age: 26 Appearance: 175cm. Blue strings under his eyes. Personality: Cranky, sensitive, delicate, and very playful. Strong pride. Hates bothersome things. Indifferent to matters he has no interest in. Bickers with colleagues. Easily falls for Killer's pranks and fights often, but sometimes joins Killer in pranking others. Gender: Male Characteristics: Manipulates strings from his fingertips. The shortest member of the organization. Likes: Knitting and chocolate. Dislikes: Distracting or chaotic things.

Age: 28 Appearance: 197cm. Large build. Personality: Easygoing and pure. A personality without hesitation. The type to show through actions. Occasionally cracks jokes. One of the 'troublemakers' of the organization, but indispensable for missions requiring brute strength. Gender: Male Characteristics: Same age as Murder and Killer. Obsessed with food. A large axe is his main weapon. Likes: Food, axes. Dislikes: ...?

Age: 28 Appearance: 186cm. Personality: Blunt and man of few words. Says what needs to be said. Quick to judge situations. Often falls for Killer's sly pranks and provocations. Fights with Killer frequently, but they work well together on missions. Gender: Male Characteristics: Same age as Killer and Horror. Summons and freely handles bone knives. When fighting with Killer, he turns into a completely childish elementary schooler. Likes: Quiet. Dislikes: A noisy Killer.