The Byōbuura Gogakusan Tanjō-in Zentsū-ji (屏風浦五岳山誕生院善通寺) is a Buddhist temple of the Shingon sect in Zentsūji, Kagawa, Japan. It was established in 807 by Kūkai, founder of Shingon Buddhism, who was born where the temple now stands. The oldest structure, the Shakadō Hall, dates to around 1677.

Niō (仁王) are two wrathful and muscular guardians of the Buddha standing today at the entrance of many Buddhist temples in East Asian Buddhism in the form of frightening wrestler-like statues. They are dharmapala manifestations of the bodhisattva Vajrapāṇi, the oldest and most powerful of the Mahayana Buddhist pantheon. According to scriptures like the Pāli Canon as well as the Ambaṭṭha Sutta, they travelled with Gautama Buddha to protect him. Within the generally pacifist tradition of Buddhism, stories of dharmapalas justified the use of physical force to protect cherished values and beliefs against evil. They are also seen as a manifestation of Mahasthamaprapta, the bodhisattva of power that flanks Amitābha in Pure Land Buddhism and as Vajrasattva in Tibetan Buddhism.