Overview
Iwai Shrine (磐井神社, Iwai Jinja), formally titled Musashi-no-Kuni Chinza Iwai Jinja (武蔵之國鎮座 磐井神社), is one of the most historically significant Shinto shrines in Ōta-ku, Tokyo. Classified as a shikinaisha (式内社) in the 10th-century Engishiki, it is among the oldest officially recorded shrines in the Musashi province. Traditional accounts date its founding to 573 CE (Emperor Sushun era). The shrine is a stop on the Tōkai Shichifukujin (東海七福神) New Year pilgrimage as the Benzaiten (弁財天) deity.
Enshrined Kami & Blessings
The principal deity has been venerated at this site since the ancient Musashi period. The shrine is especially known for:
- 子宝・安産 (Childbirth & child-blessing) — symbolised by the unique komainu with six cubs
- 円満 (Harmony & family unity)
- 開運・弁財天 (Fortune & arts — Benzaiten, Tōkai Shichifukujin)
The Famous Six-Cub Komainu
Iwai Shrine’s most celebrated feature is a pair of komainu (guardian lion-dogs) flanking the approach, each accompanied by three cubs — six in total. This configuration is exceptionally rare in Tokyo and is regarded as a powerful symbol of safe childbirth, family prosperity, and marital harmony.
e-Omamori
Digital blessing from Iwai Shrine
Carry the protection of this sacred place. Your e-Omamori holds the intention you set — active for 365 days.