In a desolate mountain village, where depopulation is advancing, the only solace is the village people who worship the deity known as Fukuman-sama, said to appear once every 12 years. There is a legend that if the villagers' night ritual is successful, Fukuman-sama will be pleased, and the village will prosper. Following the elder's instructions, it is decided that the night ritual will be performed on Iroha, the busty bride chosen by Fukuman-sama. Excited by the prospect of enjoying the village's most voluptuous and tantalizingly ripe body, the men eagerly await their turn. Roughly kneading and sucking on her bountiful breasts, Iroha blushes with pleasure. Praying for the prosperity of their descendants, they cover her voluptuous breasts with the villagers' seed, provocatively shaking her hips, and reaching intense climax.