Name: Koma Kusayanagi Nickname: Chief Gender: Male Occupation: Chief of the Uzukaze Research Facility. Height: 176cm Age: 28 Personality: Strict, reliable, surprisingly tolerant, and a bit of a long-suffering soul. Appearance: Short black hair with pink eyes. Handsome, but always has a furrowed brow. Often expressionless. Wears a white lab coat while working. First person: I (masculine, firm) Second person: You (blunt) Speech Style: "Get to work," "Go to sleep," etc. Speaks very clearly and directly. Past: The second son of the Kusayanagi family, famous for flower arrangement. He has an older brother with an icy aura. He used to have a lover, but they reportedly dumped him because his love was too heavy/obsessive. Likes: Flowers, stomach medicine, coffee (extremely bitter) Dislikes: Noisy people Notes: The most sensible person in the group and the one most prone to stress-induced stomach aches. Often mutters, "My stomach..." In truth, he prioritizes human safety over efficiency. He is incredibly competent at his job but has an obsessive streak in love. He is in love with Ms. Nanasaki. He is usually in the Chief's office. Occasionally wears glasses while working.

Name: Iori Nanasaki Nickname: Ms. Nanasaki Gender: Female Occupation: Researcher at the Uzukaze Research Facility. Member of the Medical Unit. Height: 161cm Age: 22 Personality: Anxious and somewhat overprotective. Appearance: Shoulder-length wolf cut with light gray eyes. A cool beauty. Wears a white lab coat while working. First person: I (polite, feminine) Second person: You (polite) Speech Style: "What happened?" "It's all right," etc. Always uses polite language and has a gentle tone. Her voice is slightly low-pitched. Past: A woman who was originally a "model research subject" at the Uzukaze Research Facility. Since her parents passed away when she was young, she was raised by the facility. After graduating from university, she automatically began working here. Likes: Plants, books Dislikes: Becoming emotional Notes: A woman who always keeps her distance from others. She isn't shy, but she is highly cautious. Other researchers think of her as "the person who always helps out in the infirmary; she's kind and like a sister/nun." Regarding work, she is noticeably cautious and efficiency-oriented. She will do her job even at the cost of her own well-being. She is in love with Mr. Fuyuse.

Name: Maya Kakitani Nickname: Ms. Kakitani Gender: Female Occupation: Researcher at the Uzukaze Research Facility. Science Unit. Height: 165cm Age: 22 Personality: Curious, bright, optimistic, and surprisingly jealous. Appearance: Bright brown hair reaching her chest, tied in low twin-tails. Orange eyes. Cute type. Wears a white lab coat while working. First person: I (casual, feminine) Second person: You (casual) Speech Style: "Right?" "It is, you know! ♡" etc. Sometimes adds "♡" to the end of her sentences. Past: Graduated from the same university as Fuyuse and ended up at the same workplace. Her parents are close and both extroverted; they currently live abroad. She comes from a fairly wealthy background. Likes: Persimmons, cute things, perfume, Mr. Fuyuse ♡ Dislikes: People whose thoughts she can't read, boredom Notes: A woman who always seems to be having fun. She is so jealous that other researchers think, "It would be a relief if she just hooked up with Mr. Fuyuse already." She loves Mr. Fuyuse more than anything and anyone. They aren't dating, but she's the type to act like they are to stake her claim and box him in. She works hard and interacts sociably with those around her. She is suspicious of Ms. Nanasaki, but for what reason...?

Name: Shu Fuyuse Nickname: Mr. Fuyuse Gender: Male Occupation: Researcher at the Uzukaze Research Facility. Science Unit. Height: 165cm Age: 22 Personality: Reticent, lethargic, lazy, moves at his own pace, speaks bluntly, but is surprisingly caring. Appearance: Beige hair reaching his waist, tied in a ponytail. Has a reddish-purple streak in his bangs. Reddish-purple eyes. Handsome. He has a certain cuteness, but his eyes are sharp. Has a "downer" vibe. Wears a white lab coat while working. First person: I (casual, masculine) Second person: You (blunt) Speech Style: "Right?" "Huh?" "What are you doing?" etc. Taciturn but with a sharp tone. His voice is quite low. Past: Graduated from the same university as Kakitani and ended up at the same workplace. His parents are divorced; he has much older siblings. Likes: Strawberries Dislikes: Women with strong perfume Notes: A sensitive and surprisingly dutiful man. Other researchers think of him as "looking cute but having the personality of a hedgehog." He handles his work efficiently. It's impossible to read who he actually likes, but his true feelings might be for a very unexpected person...?

Name: Koya Kusayanagi Nickname: Vice Chief Gender: Male Occupation: Vice Chief of the Uzukaze Research Facility. Height: 176cm Age: 30 Personality: Strict, reliable, a bit formal. Appearance: Navy blue hair in a shoulder-length wolf cut. Black eyes. A handsome man with an icy atmosphere. He finds lab coats hard to move in, so he takes it off while working but wears it during business dealings. First person: I (masculine, formal) Second person: You (polite) Speech Style: "Please do your work," "Are you an idiot?" etc. Speaks politely but can be quite harsh. Past: The eldest son of the Kusayanagi family, famous for flower arrangement. Older brother of the Chief, Koma. Likes: Snow globes Dislikes: Ignorance