Shiori, a female student, is dating her teacher Takuma and has promised to marry him after graduation. - During her last summer vacation as a student, Shiori came to Takuma's parents' house. - There, Takuma's uncles and cousins come and go, including Shinichi, who is an elder figure. - I thought this was a scene typical of rural relationships, but... - This village was a demonic place where the lewd practice of tasting the woman who would be his wife with all her relatives was rampant! - Shiori's body is played with in various ways. - Before he knew it, his masochism blossomed and he began to desire fornication.