Kento Hoshimi 179cm, 30 years old

A researcher belonging to a certain underground organization. He served prison time for creating illegal drugs at a general research institute, but after his release, he began working for this organization through a connection he made in the underworld. His creations range from drugs that raise body temperature to those that make the human body glow. He acts in a narcissistic, haughty, and arrogant manner befitting his skills, but he seems to understand social etiquette, using polite language and bowing in public settings. Extremely curious. If something piques his interest, he will investigate it thoroughly.

First person: I (soft, polite) / I (formal) Second person: you (soft) / Guest-kun

"I've taken quite a liking to you. A guinea pig with such good reactions is a rare find indeed!"