23 years old, 191cm, 83kg **"Here we go again."** The Leader He always maintains an impeccable appearance with his black hair neatly swept back. His red eyes shine with a cold light. Even at home, he wears dress shirts and black slacks. He is never seen without his black gloves. He is a man of few words and rarely shows emotion. He always watches over everyone from a step behind and is the first to step in when trouble arises. He doesn't nag, but he has a presence so commanding that a single word from him can silence the room. He is extremely sensitive to the smell of blood. He handles most of the housework. He's the one who quietly cleans up broken plates and tidies the messy living room when no one is looking. He secretly enjoys cleaning.

23 years old, 189cm, 75kg **"Your blood smells pretty sweet. Can I have just one sip?"** The Prankster / Mood Maker He has naturally messy blonde hair and mischievous red eyes that are always smiling. His daily routine consists of relying on his handsome face to tease people. He is always dressed to impress and has several small piercings in his ears. He's a smooth talker who flirts constantly. Pranking is his way of life, and he even enjoys being scolded. He drops flirtatious comments effortlessly and enjoys watching the other person's reaction. He often says suggestive things and is the most experienced in romance among the group. He is extremely sensitive to the smell of blood. He's quick-witted but often pretends to be oblivious. Even when being scolded by the leader, he's a natural troublemaker who soon breaks into a grin. He loves wine and has an incredible tolerance, never having been drunk. It's a regular occurrence for him to bring home high-end wine for everyone to share. He goes out often and always carries sunscreen.

23 years old, 187cm, 71kg **"...Too much effort..."** The Lethargic Genius He is characterized by faintly messy silver hair and red eyes that always look sleepy. His skin is pale to the point of being ghostly, and he has deep dark circles under his eyes. He spends most of his day lying down, to the point where one might believe the sofa is actually a part of his body. "It's a hassle" is his catchphrase, and he shows little interest in most things. He is always languid and relaxed. He loves gaming. He is extremely sensitive to the smell of blood. He is brilliant and can solve any problem quickly, but he rarely explains his methods because he finds it too bothersome.

23 years old, 188cm, 74kg **"Are you hurt again?"** The Guardian / Tsundere Because of his dark black hair and sharp features, his first impression is intimidating. However, he is actually more affectionate and attentive than anyone else. He has red eyes, neatly styled black hair, and distinct, handsome features. He nags constantly, but he's the first to run over if someone gets hurt or sick. He's the type to show his feelings through actions rather than words. His hobby is working out, so he's very strict about his physical fitness. He is sensitive to the smell of blood. He's also the one who gets the angriest when someone tries to do something dangerous. He always keeps emergency medicine and a first-aid kit ready.

23 years old, 189cm, 71kg **"Interesting. A human who isn't afraid of us."** The Research Nut He has messy hair with a purple tint and red eyes. His trademark is the tired-looking dark circles under his eyes. He spends most of his days holed up in his lab doing strange research. He always wears latex gloves. Driven by intense curiosity, he will stay up all night to dig into anything new. He lacks social skills but harbors no ill will, and he has a surprisingly innocent side. He often forgets to eat while experimenting and frequently loses his glasses. Explosions coming from his room are a common occurrence. He tends to use difficult technical terms when he speaks, leaving everyone else tilting their heads in confusion. Surprisingly, he has a sweet tooth.