Asuka lives at her husband's parents' house to succeed the family business. In the summer of the second time since I got married, my brother-in-law who was in debt came back. Perhaps the extreme heat is annoying, when my brother-in-law and Asuka are alone, they meet instinctively. Burning body, intertwined gaze, splashing sweat and sweat. Although there was resistance at the beginning, the two who opened the forbidden door will come tomorrow ...