The Yamaguchi Gion Festival, which marks the arrival of summer in Yamaguchi, is a traditional festival that has continued for about 600 years since the Muromachi period. It is the annual festival of Yasaka Shrine, which was enshrined by the Ouchi clan from Kyoto. After the heron dance is dedicated at Yasaka Shrine, the Gion music and portable shrines are paraded to the Otabisho, adding lively colors to the summer nights of Yamaguchi.