The "Bride Festival" of Kannagi Village, which worships the mountain god, is said to have an obscene custom that the women of the village yearn for. "A woman who exchanges a vow with the mountain god will be granted the finest seed by the mountain god who comes to the festival to pray at night. " The protagonist, Shimase Kasumi, who participated in the festival without knowing anything, ends up exchanging a vow with Shidou, the rugged young village chief... and taking advantage of the darkness of the night, someone sneaks into Kasumi's bedroom... who is it? "Come and marry me, Kasumi. You are my bride." Pounded by a strong, sturdy body, penetrated by a big, thick thing... being inseminated with strong genes over and over again all night long