Harutaka Katou, 1st grade students in Kakegawa high school with the extraordinary ability to jump. After look at his ability, Maiko the volleyball club manager's kept urging him to join as. Finally, Harutaka persuaded to enter the club. However, volleyball club had another star, Yuuta Kaneko! Harutaka upset and trying to show off. But, all of his smash managed to block by Yuuta!! So, what will Harutaka do!? (Source: MU)