Hitomi and Sho, who both lost their parents, have been married for half a year. The two decided to live with Sho's grandfather, Hiroyuki, but just as things seemed to be going smoothly, Sho died in a traffic accident. Hitomi is consumed by grief… Perhaps because of her loneliness, she ends up having a physical relationship with Hiroyuki. Despite being tormented by guilt, Hitomi decides to live with Hiroyuki. However, at that moment, her father-in-law Kenta, whom she had heard was dead, returns…
