第 21 集: 箱根學園高中執行戰略，道橋拿下首勝
2017年5月30日 播出
Doubashi wins the first result, and Hakone Academy High School makes its first move. As Hakone Academy High School attempts to pull ahead, Sohoku High School desperately holds on. That's when they're struck by Hakone Academy High School's strategy... (Source: Crunchyroll)