Although he has never played the sport, the short-statured Sakura Shishigaya is devoted to rugby in every respect. Inspired by watching the late professional Onotora "The Beast" Itsuki play on the field, Sakura decided to take up the game. However, being the only member of his middle school's rugby team, he cannot practice or experience the sport with other players. When he meets Onotora's son Yukito, Sakura grabs the opportunity to resolve his situation. Although Yukito is initially dismissive of Sakura's skills, a brief sparring match manages to impress him. In response, Yukito reveals that he will be attending Hyakkengawa, enticing Sakura to do the same in hopes of joining the same team. But when Sakura enrolls in the high school, Yukito is nowhere to be found. Still, Sakura believes that Yukito led him to the school for a reason. At Hyakkengawa, the rugby team is mentored by none other than Onotora, and in Sakura, they have found the newest member of their family.