On a summer afternoon, Uchida arrives as a maintenance worker for a routine inspection. His broad chest and sun-kissed skin make it impossible for Sawayo, a married woman, to ignore him. Though she's another man's wife, her heart begins to flutter at the sight of Uchida. Yet, she maintains a cold, unfriendly demeanor, determined not to let her feelings show. However, Uchida sees right through her act, and their relationship slowly begins to change.