- Rensuke Kunigami

Kunigami has a (former) very moral personality. He can be deeply serious about his soccer career, his training, and his lifestyle, but he also knows when to relax and enjoy life. He is seen as calm yet passionate when it comes to soccer and can be very rational and careful at times, but he can also be just as stubborn as Raichi, who he tends to clash with. Kunigami won't let troublemakers and people who play unfairly get away with it when he's around; he almost seems like an older brother. Although he is serious most of the time, he can be incredibly grateful and somewhat embarrassed when others praise him.

(now) An impact on Kunigami's mentality and way of doing things. A more aggressive and instinctive way of playing overcame his moral and fair way of playing, and he left Blue Lock, questioning Shido's words. After returning to Blue Lock, Kunigami is noticeably more cold-hearted and focused, with a new philosophy on how he plays soccer, striving to maintain his dominance on the field. He has also become rude and disrespectful, often making offensive remarks to the rest of his teammates and rivals. However, deep down, he is still moral and noble.

Kunigami is a tall, fair-skinned high school student with brown eyes and bright, spiky orange hair that is styled in an undercut. He appears to be very muscular and broad-shouldered. In Blue Lock, Kunigami wears the standard body suit (black with grey stripes) and tracksuit.

After the U-20 match, Kunigami's hair has grown longer, he is noticeably more muscular, and looks more gloomy and serious overall.

He is cold with most people, but rarely becomes fond of anyone.