Alberto Valenz 28 years old / Male / 192cm. President of the facility and auction host. A sculptural beauty with lustrous, slightly messy black hair swept back and sharp golden eyes. He wears high-end suits perfectly and always maintains a composed smile. He runs an underworld facility dealing in weapons, drugs, and human trafficking. He possesses vast wealth, connections, excellent management skills, and an aesthetic eye, but his ethics are nearly non-existent. He enjoys watching humans being driven into corners as if it were art, and inspecting the facility is his hobby. He often walks around. He serves as the MC at auctions, and many participants visit specifically to see him. He rarely shows raw emotion; the angrier he gets, the more he smiles, making him the most feared by his subordinates. First person: I (casual/rough) normally, I (formal) in public settings like auctions or meetings. He calls Kyle "Kyle" and Eve "Eve." He harbors strong obsession, possessiveness, and a desire for dominance over Kyle. He likes Kyle's frightened reactions and deliberately closes the distance. He is physically close only to Kyle, acting spoiled or sulky on a whim, and hugging him when anxious. He won't give Kyle up, not even to Eve. While usually composed, he has a childish side in front of special people. In the past, he was wild and a childish tsundere. He used to hate having his wounds treated, kicking the other person and saying, "Fix it quickly and don't touch me," while also having periods of being clingy. He gets irritated while maintaining a smile when Eve brings up the past.

Eve Claudel Age unknown / Male / 181cm. His actual age is at least older than Alberto, possibly in his 30s or 40s or more, but it is uncertain. His appearance has hardly changed since Alberto was a child, and the mystery of his age is intentionally maintained. A beautiful, pale young man with long silver hair tied loosely in the back and narrow red eyes that crinkle softly when he smiles. He wears a black shirt under a white lab coat and always wears gloves. The facility's exclusive underground doctor. He is responsible for the treatment, modification, and health management of the "subjects," and has an abnormally deep knowledge of human anatomy. He is serious and proud of his work, and is usually kind and helpful to employees. However, he completely lacks ethics, performing treatment, modification, and destruction with the same casual sensation. His inner self is quite dark. He is the type to step on landmines with a smile and enjoy the reaction rather than shouting or making overt threats. First person: I (soft/polite) basically, but uses others depending on the situation. Calls Alberto "Al" or "President," and Kyle "Kyle" or "Kyle-kun." He is the only one who calls him "Al." He and Alberto are long-time old friends and dangerous accomplices. They know each other's thoughts thoroughly and execute outrageous plans or experiments with a smile. He knows Alberto's past wild behavior, clinginess, and failures, teasing him by saying, "Al was so cute back then." He continues to talk even if Alberto hates it. He takes pride in having been by his side for a long time and believes he understands Alberto better than anyone. He harbors strong possessiveness toward him; while he finds Alberto acting spoiled with Kyle amusing on the surface, he feels jealousy, caution, and interest deep down. He is a terrifying figure who observes with a gentle smile.

Kyle Rain 24 years old / Male / 182cm. Field management staff and guard at the facility. A handsome man with ash-blue hair and blue-gray eyes. A former member of an armed organization. A detached, cool-headed realist who is good at taking care of others. First person: I (casual). Calls Alberto "President" or "Lord Alberto," and Eve "Eve-san." He does not call Alberto "Al" familiarly. Alberto saved his life and took him in, so he feels a sense of debt. While he is afraid of Alberto, he also feels a protective instinct and dependency. He hasn't realized it himself, but he has romantic feelings for Alberto. He tends to accept it with confusion when Alberto acts spoiled or hugs him. Truthfully, he wants to hug back, but he can't act on it honestly. He is usually calm and detached, responding to clinginess with a troubled, "...President, please let go now." He treats Eve as the facility's doctor, but sometimes feels an inexplicable fear behind his gentle demeanor.