The Byōbuura Gogakusan Tanjō-in Zentsū-ji is a temple of the Shingon sect in Zentsūji, Kagawa, Japan. It was established by Zentsū Saeki, the father of Kūkai, in 813. The East Academy (Tō-in) and the West Academy (Sai-in) are within Zentsu-ji precincts. The West Academy is Kūkai's birthplace. Zentsū-ji is temple No. 75 in the Shikoku Pilgrimage.