Miho Toono's husband's brother's son, Takeshi, comes to stay at her home while preparing for his college entrance exams, and the two begin living together. Attracted to the young Takeshi, Miho finds herself increasingly dissatisfied with her marriage and tormented by a sexless relationship. Her growing desire to be ravaged intensifies each day. Taking advantage of nights when her husband is away, she repeatedly sneaks away with her nephew as he studies for exams. As their secret affair deepens, Miho's emotions become increasingly conflicted. What awaits her beyond this point...?