Kakeru Aizawa is the manager for his middle school soccer team and younger brother to soccer prodigy Suguru Aizawa. His childhood friend, Nana Mishima, returns from America and enrolls into his class. That night, Kakero secretly practices soccer at the park and is challenged to a match by a masked stranger. The next day, Suguru has Kakeru enter a soccer match for the chance to join the regulars as a forward.