Banna-ji (鑁阿寺) is a Buddhist temple of the Shingon sect in the city of Ashikaga, Tochigi Prefecture, in northern Kantō region of Japan. The honzon of the temple is a statue of Dainichi Nyōrai, leading to the temple's nickname of Dainichisama,. The temple is built on the ruins of the ancestral fortified residence of the Ashikaga clan who ruled Japan during the Muromachi shogunate, and its grounds are a National Historic Site
Shingon Buddhism (真言宗, Shingon-shū) is one of the major schools of Buddhism in Japan and one of the few surviving Vajrayana lineages in East Asia, originally spread from India to China through traveling monks such as Vajrabodhi and .