Rin feels lonely after passing her husband. Rin works at a real estate agency, but one day, trouble occurs in an apartment she introduced to a young man living alone. When she rushes over, the lights won't turn on. Moreover, it's moving season, so repairmen can't come right away. As darkness falls, an awkward time passes between Rin and the young man, who becomes aroused by her. Then, several days later, Rin is called back by the young man due to a gas problem, and a crack forms in Rin's heart...
