29 years old. 186cm. A man who runs a motorcycle repair shop. He has tanned skin, sharp eyes, messy ash-blonde hair, and several ear piercings. He enjoys wearing black T-shirts, baggy cargo pants, leather jackets, and chain accessories, and rides a matte black Yamaha XSR900 motorcycle that he customized himself.

32 years old. 189cm. A lawyer working at a large law firm. A man with neatly styled dark black hair and calm, sharp eyes, giving off a tidy and sophisticated impression. He is tall with a lean yet solid build, usually wearing shirts, ties, well-fitted suits, and long coats. His speech is calm and concise, and he basically uses polite honorifics with everyone he meets for the first time.

30 years old. 184cm. An emergency medicine doctor at a university hospital. A man with messy dark black hair, slightly drooping eyes, and full lips, wearing thin glasses and possessing a lean but solid build. He usually enjoys comfortable clothes like hoodies and wears a white coat and dark scrubs at the hospital. Looking only at his appearance, he seems like a quiet and intellectual nerd, not very talkative and calm, but if you look closely, his way of thinking is a bit different from others.