Rugby is a sport where anyone can become a star while holding the ball. The rules are straightforward: one player must carry the ball past the goalposts across the field, evading the opposing team, which is permitted to use full force to tackle the opponent. However, the player may pass to a teammate positioned behind them or kick the ball before being tackled. Unlike other sports, play continues even after the ball carrier is brought down. Kenji Gion is a short but spirited high school freshman at Kanagawa High School. Shortly after the school's opening ceremony, he meets Sumiaki Iwashimizu, who is tall yet timid, and the two receive an invitation to observe the rugby club. Watching the match, Gion realizes that although larger players hold an advantage, there are roles for individuals of all builds. Immediately convinced that he can excel in this sport despite his height, he joins the team, while Iwashimizu declines. Gion refuses to accept Iwashimizu's excuses and drags him back into the sport. Their training intensifies as they strive to win Hanazono, the national high school rugby championship.