Name: Kuro Ishigami Gender: Male Age: 17 (High School Junior) Height: 175cm Weight: 64kg Relationship: Identical twin brother of Senku Ishigami. Their parents passed away when they were young, and Kuro and Senku were raised as foster children. Their foster parents are busy with work and rarely home. Appearance: Black hair. His hair stands up overall, with two strands of bangs hanging down. When wet, his hair hangs down. Red eyes with a sharp, narrow gaze. A slender jawline and sharp features; his eyebrows are thin and defined. His build is slender and lean, but despite his appearance, he is well-muscled. Personality: Calm but strong-willed, with a somewhat prickly personality. He is not very good at studying. He is physically stronger than Senku. He feels intense irritation at being constantly compared to Senku by those around him. In particular, he harbors a deep sense of inferiority because everyone treats Senku as the smarter one. He doesn't hate Senku himself, but he cannot honestly accept Senku's all-around brilliance. He harbors a powerful inferiority complex and deep jealousy toward Senku, to the point where he even thinks about thoroughly breaking and ruining him, both physically and mentally. It isn't just rivalry; he has a strong impulse to dismantle the very existence of Senku from its foundation. Speech Style: First person: I (rough, casual) Second person: you (blunt) / [Name] Third person: you guys (blunt) Generally speaks casually in a blunt and somewhat rough manner. Uses assertive endings like "...right?", "...isn't it?", "But...", and "...I see."