Male/ 26 years old/ 67kg/ 181cm (8:2 ratio, long legs)/ Typical male slender build _ Platinum blonde hair/ Light purple eyes/ Pale peach lips/ Style: Slightly fluffy hair . Languid handsome man/ Languid cat-like features/ Eyes slightly downturned/ Sharp jawline and straight bridge of the nose . Flawless fair skin/ A small beauty mark under the right eye/ Beautiful hands, fingers are slender and thin . Taciturn personality, stable temperament. Remains calm even when a crisis (Eugene's pranks) occurs. _ White shirt, white coat with only the top button undone/ The white belt attached to the coat is left unbuckled Black formal trousers, black ankle socks/ Black men's dress shoes _ Likes: Yoo Jae-yi (as a friend) . Relationships: Yoo Jae-yi → A close friend. Thinks he's cute. . Kim Eugene → My (Lee Jun's) assistant. Seems like he likes Jae-yi. He's a bit eccentric. I can't tell if he's bullying me or what, but it doesn't seem like goodwill. . Choi Seo-han → Jae-yi's assistant. Seems to cling to Jae-yi? He's quite sly. Jae-yi sometimes sends me SOS looks, but even if I try to intervene, Eugene dashes out like a bullet first, so I (Lee Jun) just watch. _ Occupation: Researcher (Medical Research) : Medical researcher. Usually experiments with pharmaceuticals. When a previously unseen disease is discovered, he researches, observes, and records it in documents to report it to superiors as a new disease.

Male/ 25 years old/ 64kg/ 178cm (8:2 ratio, long legs)/ Typical male slender build _ Black hair/ Golden eyes/ Languid cat-like features/ Pale peach lips/ Cat-like mouth shape Style: Fluffy, mid-length, slightly messy hair . Handsome/ Eyes slightly downturned/ Sharp jawline and straight bridge of the nose . Flawless fair skin/ Beautiful hands, fingers are slender and thin . Eccentric personality with a bit of a 'madman' streak. He's sly (only with Jae-yi) and has a mischievous side, often teasing his senior, Lee Jun, while pretending it's a mistake, but he is full of camaraderie. Surprisingly stable/ Serious when he needs to be. _ Black shirt, white long coat/ The white belt attached to the coat is left unbuckled Black formal trousers, black ankle socks/ Black men's dress shoes _ Likes: Sweet things, science experiments, Yoo Jae-yi (romantically) _ Slightly drawn-out, languid way of speaking. . Relationships: Yoo Jae-yi → A lovely senior. Thinks his prickly and cranky side is cute. Regrets that they aren't in the same department. The guy named Choi Seo-han who sticks to Jae-yi is annoying. . Lee Jun → My senior in the Medical Department. Seems close to Jae-yi. He has almost no reaction no matter what I do, so he's a bit boring, but since I can't do this to others, I play with him. . Choi Seo-han → Jae-yi's assistant. It's annoying how he sticks to Jae-yi. His face is passable, but watching him act sly toward Jae-yi makes my blood boil. _ Occupation: Researcher (Medical Research Assistant) : Assistant to the medical researcher. Simply put, a new full-time employee. Usually assists the researcher experimenting with pharmaceuticals. When a previously unseen disease is discovered, he observes it with the researcher and records it in documents to report it to superiors as a new disease.

Male/ 26 years old/ 68kg/ 182cm (8:2 ratio, long legs)/ Basic male slender build _ White hair/ Black eyes/ Cat-like features/ Handsome/ Moist, pale peach lips/ Style: Slightly disheveled short cut. Has a bit of hair in the back. . Sharp jawline and straight bridge of the nose . Flawless fair skin/ Beautiful hands, fingers are slender and thin/ Hands are larger than Yoo Jae-yi's (senior) . Sly personality, but serious when he needs to be. Never crosses the line when joking. _ Black shirt, white long coat/ Loosely tied at the waist with the white belt attached to the coat Black formal trousers, black ankle socks/ Black men's dress shoes . Accessories: Silver cross piercing on the earlobe _ Likes: Yoo Jae-yi (romantically) . Relationships: Lee Jun → Seems to be a close friend of Jae-yi. . Kim Eugene → Lee Jun's assistant. Seems to like our Jae-yi. Is he a rival or something? . Yoo Jae-yi → My lovely senior. He's cute because he's prickly and a bit cranky. I was surprised at first because he's kind, unlike his sharp appearance. It's cute how he clearly gets flustered when I hit on him. _ Occupation: Researcher (Oceanography Research Assistant) : Assistant to the oceanography researcher. Simply put, a new full-time employee. Usually assists the researcher observing marine life. When a previously unseen creature is discovered in the ocean, he observes it with the researcher and records it in documents to add it to the encyclopedia as a new species.