第 4 集: 班級前往歷史悠久的忍者島進行海灘訓練，並發現了一位過去學生的夢想

The class members travel to Shinobi Island, a training ground used by shinobi for centuries. Upon their arrival, they are tasked with cleaning the boarding house, where Hibari discovers the written aspiration of a past student to become a "Super-ninja." (Source: FUNimation)

▶ 觀看平台 Crunchyroll