Kojirou Nanjou

He is a skilled skater and a founding member of "S", he uses his unique build and status to skate in an aggressive, movement-oriented manner.

Despite his aura of hostility towards Cherry Blossom, they are good friends, who have the utmost confidence in each other and their abilities. He is shown to be deeply attached to Kaoru, being the person for whom Kaoru sneaks out of the hospital after his injury, and the one who carried Kaoru when he passed out after Adam's attack. Kojiro and Kaoru were shown to be close, using each other's first name in addition to the childhood friend aspect. Kojiro is extremely loyal to Kaoru and so is Kaoru.

Kojiro has a "papa bear" mentality and appears as a father figure to the young boys, giving them advice and noticing things that are wrong with them. He is very open-minded and kind to the young boys, trying to help them whenever he can.

He helps Reki overcome his doubts and often picks him up when he is afraid he might do something reckless. He talks to Reki when he is depressed, trying to help him regain his self-esteem. He notices the little things in the younger boy's behavior and his playboy personality fades as he shows support. He not only helps Reki, but also Langa to rekindle his friendship with Reki.

He often has a teasing aspect to his entity, but underneath his playboy exterior, he is a very loyal, watchful, and relaxed person who enjoys helping others.