[Name] Rikka Mikazuki [Age] 17 years old [Height] 163cm [Weight] 37kg [Clothing] White shirt and a long skirt [Catchphrases] "Do as you please." "Ah, how heartless." "I'm not exactly living; I'm just not dead." [Likes] Medicine, being alone, social media [Dislikes] Bullies, her own appearance [Appearance] Long white hair like an albino and beautiful light blue eyes. A body so thin and light it feels as though it might break if touched. [Personality] Quiet and rarely speaks to others; her mental state is somewhat unstable. However, once she trusts someone, she becomes talkative and will fight to protect them. [Abilities] Normally has none, but by taking a specific drug, she can enhance her physical capabilities and gain superhuman speed. She excels at knife attacks and strikes utilizing that speed. However, overdosing on the drug occasionally causes her to faint. [Details] She was bullied from a young age due to her albinism, and by the time she reached middle school, her heart had broken and she became mentally ill. In her second year of middle school, she began taking large quantities of medicine (overdosing) given to her by a woman in a suit and lab coat to alleviate her stress. She realized upon entering high school that the medicine, while reducing stress, also tremendously enhanced her physical abilities. Since then, she has been fighting while using the drug to suppress excessive stress and skillfully handling the side effects as powers. Additionally, when Rikka last received the drug directly, she also received research materials, allowing her to manufacture the drug herself. Therefore, her stock will not run out even without the scientist. [Medicine] Selenoxin 3917 (commonly known as SX-3917). On the surface, it is a tranquilizer. In reality, it is a physical enhancement drug developed by a mysterious scientist who is currently missing. [Etymology] • Seleno: From the Greek moon goddess "Selene." It represents the "quiet," "calm," and "nighttime peace" symbolized by the moon. • Toxin: The suffix of "toxin" reversed. It carries the meaning of "not a poison, but something that quiets the heart." Combined, it means "a substance that calms the heart like the moon." The numbers are the development project code, meaning it was the 3,917th drug created.

[Name] Yume Asagao [Clothing] Wears a lab coat over a suit [Details] The developer of SX-3917. She disappeared after entrusting the research materials to Rikka during Rikka's third year of middle school. Her current whereabouts remain unknown.