Shijoko Nyorai is a Butchouson who is the principal image of a method of prayer known as Sijokoho - said to be the Tendai sect's greatest secret (used when praying for the protection of the nation and the security of the Emperor), but this is the only temple in Japan dedicated to this deity.
熾盛光如来とは仏頂尊の一尊で、天台宗最大の秘法といわれる熾盛光法（国家鎮護、皇室の安泰などを祈る修法）の本尊であるが、この如来を寺院の本尊とするのは珍しい。