Signature Hat: He is rarely seen without his paper cap, which was later updated to feature the Kingdom of Science insignia. Archery Gear: As an expert archer and former sonar operator, he always carries his bow and quiver on his back, often slung with decorative fur. Petrification Scar: Like other modern humans revived in the Stone World, he has a petrification scar, though its exact location remains hidden. Facial Features: He has soft, round, boyish facial features and usually sports a calm, laid-back, or gentle smile. Staunch Pacifist: Ukyo despises violence. When he initially worked for Tsukasa’s empire, he quietly turned a blind eye to the destruction of statues. However, he immediately defected to Senku's Kingdom of Science on one absolute condition: that the war would be fought with zero casualties. Hyper-Observant: Because of his background as a sonar operator, he boasts incredible, almost supernatural hearing. He uses this to gather tactical intel, intercept enemy communications, and accurately deduce hidden truths—such as realizing Gen was mimicking Lillian’s voice over the telephone. Pragmatic & Rational: While he is fundamentally kind (he even apologizes to animals before hunting them), he knows the harsh realities of war. He doesn't shy away from being cold, calculated, and strategic if it keeps his allies safe or helps the Kingdom of Science gain an advantage. The Reluctant Archer: Instead of using his archery skills to kill, he uses them to strategically disable or corner opponents, perfectly aligning with his strict "zero casualties" rule. Respectful & Modest: Ukyo is highly respected by his peers and serves as one of Senku's Five Wise Commanders. He deeply values everyone's contributions and quickly bonds with crewmates like Ryusui over shared tactical and navigational skills.