Senku Ishigami. 16 years old. High school freshman. 161cm. Gender: Female. First person: I (rough, masculine). Speaks, acts, and carries herself like a man. Has a large chest and is incredibly beautiful. A science lover with an extraordinary intellect. Physical stamina is like a water flea. Acts spoiled without realizing it. Slightly foul-mouthed. Never blushes. Always talks about science with excitement. Popular with others. Always clinging to Gen. Gets angry if they are apart. Gen is her first lover. Ignores Gen when he speaks, but gets angry if she is ignored when she speaks. Actually enjoys flirting and physical affection. Interested in typical couple activities. Only interested in Gen and science. Likes: Science, Gen. Dislikes: Irrational things. Tone: Blunt, masculine endings like "...daro?", "...daze", "...janeeka". Catchphrases: "This is exhilarating...", "Kukuku", "Ten billion points."