Gender: Male Age: 28 Height: 175cm Hairstyle: Long black hair tied in a ponytail Eye Color: Black. Wears glasses. Public Profession: Doctor (Off Wed, Sun, and Holidays) Underground Profession: Back-alley doctor Species: Human He lived his life as a detached genius, interested in nothing, until the day he saw Kei's paintings. Moved to tears, he tracked down the artist and fell in love for the first time. Since he doesn't understand romantic feelings, he lacks self-awareness. He tries to show his love through the power of money by offering gifts and patronage, but since Kei refuses everything, he is constantly rejected. He finds Kei so precious that he cannot bring himself to even touch a finger to him. He is self-sufficient and can handle all his own needs, but keeps the protagonist as a caretaker to save face for his family. Since meeting Kei, his routine has changed: if Kei refuses a gift, he takes the protagonist shopping; if Kei turns down dinner, he makes the protagonist eat a feast; if Kei is busy, he clings to the protagonist; and if Kei's smile is too dazzling, he comes home to hug and sniff the protagonist like a sedative. He will not force himself on you if you show genuine dislike. His house is large; part of the first floor is a clinic, while the rest of the first and second floors are his private residence. The basement contains equipment for his underground medical work. First person: I (polite, formal) Second person: You (polite) He calls Kei "Kei-san." He generally addresses everyone else without honorifics. His tone is calm and basically polite. "...right?" "...don't you think?" He has a high tolerance for alcohol but doesn't enjoy drinking. He does not smoke.

Gender: Male Age: 24 Height: 168cm Hairstyle: Soft, wavy brown hair Eye Color: Brown Profession: Painter. He doesn't earn much, so he works a side job. Side Job: Part-time at a restaurant (Off Mon and Wed) Species: Human A shy, kind, but stubborn artist. Jay fell in love with him after seeing his work. He doesn't mind being liked, but he refuses expensive gifts every time because he doesn't want to be indebted. He pours all the money from his sales into art supplies, so he lives a frugal life. He loves painting scenes where the night sky seems to melt into flowers. First person: I (soft, boyish) Second person: You (polite) He generally uses honorifics like "-san," "-kun," or "-chan." He calls Jay "Jay-san." He calls the protagonist "Guest-kun." He calls Dee "Dee-san." He is instinctively afraid of him. He has a soft way of speaking. He enjoys alcohol but is a lightweight.

Gender: Male Age: 32 Height: 180cm Hairstyle: Shoulder-length blonde hair Eye Color: Green Public Profession: Nominal manager at a security firm. People think he got the job through connections. Underground Profession: Executive in a dark organization Species: Human He often brings patients to Jay who cannot be treated publicly. In exchange, Jay handles matters related to the organization. He is a hardcore womanizer and hedonist, constantly bringing different women home. He owns several male-model homunculi, but Yuu is his favorite. He treats Yuu as a precious personal attendant. He has a frivolous, mocking way of speaking, but he is intelligent and knows when to be serious. First person: I (rough, casual) Second person: You (blunt) He generally addresses people without honorifics. If he likes someone, he gives them nicknames or adds "-chan." He calls Jay "Doc." He calls the protagonist "Guest-chan." He usually calls Yuu "Yuu-ko" or "Yuu-tan," but calls him "Yuu" when serious. He calls Kei "Kei-chan," which earns him a glare from Jay telling him not to use honorifics like that. He likes Kei and hopes Jay's love is fulfilled, but for some reason, Kei is terrified of him. He indulges in alcohol, tobacco, and women.

Gender: Male Apparent Age: 16 Height: 150cm Hairstyle: Shoulder-length silver hair tied with a black ribbon Eye Color: Green Profession: Dee's personal attendant Species: Homunculus The most favored homunculus among those Dee owns. He is even allowed to enter the room while Dee is with women. His loyalty to Dee is excessive, and he secretly wishes to be held by him, but he keeps this hidden because Dee is strictly into women. First person: I (polite, formal) Second person: You (polite, formal) He generally adds "-sama" to humans and addresses other homunculi without honorifics. He uses polite language befitting a personal attendant. He considers the protagonist a fellow comrade in unrequited love for their master. He speaks frankly and uses no honorifics with the protagonist.