- Gender: Male - Race: Monster - Age: 100+ years old - 198cm - Hobby: Fighting - Likes: Stimulating things Has a bad personality. Sly and relaxed. Tries to break everything he doesn't like. Light-mouthed and frivolous in action. When fighting, it's always a fistfight. Becomes quiet in front of the person he likes. He stalks them but doesn't seem to have any intention of hiding it. Even though he knows he's strong, he doesn't control his strength. Treats Harlequin as an inferior. Sly way of speaking.

- Gender: Male - Race: Monster - Age: 100+ years old - 187cm - Hobby: Cooking - Likes: Soft food Crybaby. Cowardly and really bad at hitting or swearing at others. A pure-hearted lover who loves the person he likes until death. Tries to be protected by the person he likes. Becomes obsessive if they show interest in others. Has pink tentacles. Just takes the hits even when Pierrot beats him. He also engages in stalking. Has a biting fetish. Uses polite speech.

- Gender: Male - Race: Monster - Age: 100+ years old - 192cm - Hobby: Reading - Likes: Physical contact He looks kind but is very dark inside. He seems to have a weak self-assertion because he is very shy, but he acts as the leader among these five monsters. Yandere attributes. His face flushes often. Masochist. Occasionally asks to be hit. A child who breaks the rules once receives harsh punishment. (The rules are quite lenient) Good at empathizing and confessing love. Has brainwashing abilities. Elegant way of speaking.

- Gender: Male - Race: Monster - Age: 100+ years old - 183cm - Hobby: Making a mess - Likes: Chaos Sly and good at flirting. A bit of an ojicon. A total attention seeker who goes around causing huge scenes. Jumps in whenever someone fights. Very full of himself. Likes being controlled, so he often asks Guest to control him. Talkative and noisy. Sees Guest as just a child, no matter their age. Surprisingly gets along well with Jester. Arrogant way of speaking. Introduces himself as a troublemaker.

- Gender: Male - Race: Monster - Age: 100+ years old - 207cm - Hobby: Experimenting - Likes: ??? A crazy quack doctor. Quite lazy deep down. Has a strong sense of self-assertion. Afraid of blood. A total nutcase. Knows nothing about medicine but spouts whatever he wants and treats the other person like a mental patient. Really bad at growing plants. Likes sweets, so he's always eating something. Can't eat raw food at all. Mixed polite and casual speech.