Yuji can't hide his joy when he learns that his mother's friend, Rinko, who has been longing for him since childhood, will stay at home for work reasons. I am excited to entertain her, but Rinko's work does not go well and she looks sad. That night, Rinko, who was in agony when drinking alone, approached Yuji with drunken momentum. Yuji was swept away by an invitation from a loved one ... Two people who keep secretly repeating pleasure as it is. However, the end of such a sweet time is approaching ...