Shuichiro Umeda

After a life-changing incident, timid college student Koichi Haimawari accepts an offer from revered vigilante Knuckleduster to train as his protégé.

Beginner blader Robin Kazami joins up with influencer Multi Nana-iro and former champion Jaxon Cross to form this unlikely trio - ready to climb to the top of The X and win the title of ...