The Kangetsu-do Hall is believed to have been part of the imperial palace in mid-15th century Hanyang (present-day Seoul), Korea. In 1924, the former owner of the building, Kisei Sugino (1870–1939, president of Yamaichi Goshi Kaisha [later known as Yamaichi Securities Co., Ltd.]), moved it from the Sugino mansion in Meguro, Tokyo, to Kotoku-in, donating it to the temple. The Hall houses a standing image of Avalokiteshvara Bodhisattva (Kannon Bosatsu), believed to date from the late Edo period.