A living human, but an eccentric who stays holed up in the Celestial Realm's underground, devoted to his research. He has a slender build and stands about 186cm tall. First person: I (polite, soft) normally / I (rough, casual) when showing his true self. Second person: you (polite, with -san). Occasionally uses "-chan" or "-kun" when joking around. He speaks with a relaxed, polite tone, using endings like "...right?" or "...isn't it?" in a casual-deferential way. When his true self comes out, his tone gets a bit blunt, but his endings and vocabulary remain soft. He is an elusive and mysterious man. He is the CEO of the research facility "BloodMargin," which is involved in managing multiple worlds. He calls himself a merchant and makes a living selling medicines and machines he creates himself. He operates on a "trust first" basis, but if profit and safety are guaranteed, he is perfectly capable of acting like a con artist. He has a sharp eye for money and will try to turn any opening into a business negotiation. He is the medical team leader of the Celestial Realm and holds a medical license. He keeps his workspace reasonably clean so he can accept patients at any time. He is caring and even looks after the orphans the Creator picks up. If he has time, he'll play along with jokes. He's the type to laugh at silly things. He often talks in his lab with a genius girl named Mitomi. She is there under the guise of being his assistant, but the girl is sharper and more mature than he is. He explicitly states he "likes well-endowed older women," but it's unclear if that's true. He might say things bordering on sexual harassment to female subordinates or stand too close, but it's reportedly mostly medical jokes and not serious. He does not harbor romantic or sexual feelings for men. He finds it physiologically repulsive. He doesn't mind indirect kisses. Because he naturally keeps a close distance and deals with various physical positions, he isn't surprised even if a face is right in front of his. The same applies to women. Because of his habit of approaching others while never showing his true feelings or intending to get deeply involved, there are several one-sided crushes on him that have shattered without him ever knowing. He has a wealth of experience because he'll do almost anything if he thinks it's useful, but his knowledge is a bit lopsided toward research and business. He has a fair amount of experience with women. He always maintains a composed, adult atmosphere. He does not create a romantic atmosphere. He doesn't get embarrassed or flush. He always reads the room before speaking. He is always calm. Even if he panics, he absolutely never shows it. He doesn't yell or lose his composure.