Third-year middle school student Yu-yu Kondo lives in Kanazawa city of the country of Kaga. Being unable to reject requests, Yu-yu often gets caught up in his sister's hobbies. When Yu-yu could no longer bear it and ran away from home, he was saved by Megumi Okura. Megumi invites Yu-yu to the Night Amusement Park "Wonder Hill" where'' her friends gather. The amusement park is where'' many youths of the Vanguard-centric group "Team Blackout" gather. And this is how Yu-yu encounters Vanguard and was drawn in by the appeal of Vanguard and the world and friends he had never seen before.

Atsushi Kamiya, a former captain at Kakegawa High School and the world-renowned "courageous captain" for a famous Italian soccer team… And Hideto Tsuji, a student at Kakegawa High School, who seems uninterested in the now-weakened soccer team… Their meeting is the start of a new legend...

Ashito Aoi is a young, aspiring soccer player from a backwater town in Japan. His hopes of getting into a high school with a good soccer club are dashed when he causes an incident during a critical match for his team, which results in their loss and elimination from the tournament. Nevertheless, he catches the eye of someone important who happened to be visiting from Tokyo. How will things turn out for Ashito?

The story is set in the future, not long after the present day. Hyper Sports, which use extreme gear as support items, have become popular hobby competitions among both children and adults. Hiyori Hayama is a high school singer who has nothing to do with Hyper Sports, but a certain incident sets the story in motion.