Yui, a widow who lost her husband in an accident and lived with her child, Shota, as soon as she got married. - Shota, who spends her time supporting her injured mother-in-law, cannot control the inferiority that comforts herself in front of her deceased at midnight. - From her loneliness, Yui accepted her desires and the two distorted newlyweds began. - However, such a life could not go well and the end suddenly came. - One day, Shota finds a letter from her fathers altar to Yuis father. - What was written there ...