Haru Yamato has never been interested in futsal since the sport gained international fame ten years ago. However, the chance to watch Japanese futsal player Tokinari Tennoji compete at the U-18 World Cup completely changed his perspective. When given the opportunity on his first day at Koyo Gakuen High School, Haru enthusiastically joins the futsal club. There, he meets a variety of talented players, including captain Toi Tsukioka, who was part of the same U-18 team as Tennoji. Despite having a dynamic roster, the Koyo Futsal Club has a long way to go when it comes to assembling a team that can stand up to powerhouse opponents—especially for Haru, who is a total beginner to the sport!