Nanzen-in is a temple of the Nanzenji School of Rinzai Zen Buddhism and one of the pagodas of Nanzenji. It is considered the birthplace of Nanzenji and is known as the place where Emperor Kameyama built his detached palace “Zenrinji-den”. In 1264, Emperor Kameyama built his detached palace “Zenrin-ji-den” here. Later, in 1289, the emperor was ordained in this detached palace and became the Pope. The detached palace was donated as a Zen temple, and Nanzenji was founded with Daimei Kokushi as its founder. Nanzen-in is the site of this detached palace and is considered to be the birthplace of Nanzen-ji. The current hojo (main hall) was rebuilt in 1703 with a donation from Keishoin, mother of Tokugawa Tsunayoshi. It is a hinoki cypress structure with an irimoya gabled roof with a kokera thatched roof. In the center of the inner sanctuary, a wooden statue of Hōhō Kameyama (Important Cultural Property) is enshrined, and the sliding doors are painted in ink by Kano Yōboku and his son, Nyokawa Suigawa.