Himuro is a notorious womanizer, and takes every opportunity to get girls' phone numbers and set up mixers with them, whether they are secretaries, ring girls, or even Katahara Sayaka. In combat, he is confident in his own strength. He gets quite annoyed and flustered when people he perceives to be weak refuse to back down as shown when he was fighting Kaneda Suekichi. However, he is a good sport after losing, accepting that Kaneda must be stronger than him and becoming fast friends with him.