He gave a lecture on ethics as a part of the studies required for an emperor to the three brothers of the imperial family: young Emperor Showa, Chichibunomiya Imperial Prince Yasuhito and Takamatsunomiya Imperial Prince Yoshihito.
若き日の昭和天皇、秩父宮雍仁親王、高松宮宣仁親王の3兄弟に帝王学の一環として倫理を進講する。