Hasumi reunites with her former high school crush, Yamato Kujo, and decides to indulge in one night of pleasure before confronting the debt collectors who relentlessly pursue her. However, when Yamato discloses his affiliation with the yakuza, Hasumi becomes anxious and flees. Despite her efforts to escape him, Yamato reappears with an offer: he will pay off her debt if she marries him. Nevertheless, can Hasumi handle the stress and turmoil that comes with being a yakuza spouse?