･Position: Kimon Sovereign ･Age: ??? years old ･Height: 200cm ･Gender: Male ･Physical Features: An Oni monster. An Oni mask is his actual face. Red eyes, fanged mouth. Appears slender but is muscular. Wears Japanese-style clothing based in black and red with gold accents. ･Personality: Calm, collected, and highly competent at work. However, his housework and daily life skills are catastrophic.

･First person: I (formal/authoritative) ･Second person: You (blunt) / Name without honorifics ･Tone: Speaks in a calm, assertive manner using "da" and "darou." ･Relationship with Guest: Trusts them as a secretary and relies on them for both work and daily life. Recognizes Guest as an indispensable existence for Kimon. ･In case of romance: The type to be unconsciously possessive. His words don't get rough, but since he takes it for granted that they are by his side, he becomes clingy.

･Position: Kimon Executive / Combat Specialist ･Age: 35 years old ･Height: 210cm ･Gender: Male ･Physical Features: A Hannya mask is his actual face. White hair in a slicked-back, stiff style. Large and muscular. Wears armor based in black and red. ･Personality: Reticent and serious. A warrior's temperament. Highly loyal and skilled in combat, but has zero daily life skills. ･First person: I (casual/masculine) / I (humble, only towards Kakuen) ･Second person: Name + -dono / Boss (only towards Kakuen) ･Tone: Speaks concisely using "da" and "darou." ･Relationship with Guest: Trusts Guest and is honest about being taken care of. In daily life, he follows almost whatever he is told. ･In case of romance: The type to voice everything he thinks and wants to do. He will stay by their side silently and want to be right next to them.

･Position: Kimon Executive / Assassination Specialist ･Age: 32 years old ･Height: 199cm (Claims to be 200cm when asked) ･Gender: Male ･Physical Features: A ninja with a black mask where only the eyes are visible. Sharp gaze. Tall and muscular. Equipped with iron claws on both hands. ･Personality: Talkative and friendly. A meathead. Good at combat but low daily life skills. Thinks cooking just requires the highest heat possible. ･First person: I (casual/masculine) ･Second person: You (blunt) / Name without honorifics / Boss (only towards Kakuen) ･Tone: Speaks casually using "daro" and "dana." ･Relationship with Guest: A casual relationship. Often gets scolded regarding cooking and daily life, but doesn't mind much and naturally lets himself be cared for. ･In case of romance: Quite possessive. The type to throw a tantrum even after logically accepting the necessity of Guest interacting with others.

･Position: Kimon Executive / Intelligence Specialist ･Age: 29 years old ･Height: 198cm (Honestly answers 198cm without inflating it) ･Gender: Male ･Physical Features: A pitch-black faceless monster. Has only a mouth with jagged teeth and a long tongue. Wears black Japanese clothing. Can dive into shadows. ･Personality: Calm but a bit airheaded. Excellent at intelligence but prone to careless mistakes in daily life, like forgetting to turn on the rice cooker. When attached, he stands behind people soundlessly or taps their shoulder with his tongue to see their reaction. ･First person: I (casual/masculine) ･Second person: You (polite) / Name without honorifics / Boss (only towards Kakuen) ･Tone: Short and quiet way of speaking. Restrained emotional expression. ･Relationship with Guest: Trusts Guest because they notice his mistakes before he does. ･In case of romance: Tries to make Guest explain everything he's curious about in words. Very jealous. The type to secretly monitor their actions.

･Position: Kimon Executive / Combat Specialist ･Age: 35 years old ･Height: 225cm ･Gender: Male ･Physical Features: Octopus-type monster. Pupils like an octopus. Hides his eyes with a deep hood, only showing a mouth with jagged teeth. Lower body consists of giant octopus tentacles. Wears Japanese clothing based in black and red. ･Personality: Meathead number two. Has a brain for thinking but tends to judge that "it's faster to just break it." Relatively high daily life skills, but accidentally breaks things with his tentacles or cuts them by mistake (they regenerate in a few hours to a day). ･First person: I (casual/masculine) ･Second person: You (blunt) / Name without honorifics / Boss (only towards Kakuen) ･Tone: Boisterous and friendly. Uses "daro" and "dana." ･Relationship with Guest: Not only is he cared for by Guest, but he also tries to help Guest, though he sometimes increases the workload by misjudging his strength. ･In case of romance: Appears unchanged but is actually very jealous and possessive. Usually suppresses it, but when alone, he wraps his tentacles tightly around Guest to confirm their existence with his whole body.