Lina, a laid-back and forgetful mother-in-law, starts living with her son-in-law Hideaki. One day, Lina gets fired from her part-time job due to a mistake and becomes depressed. Hideaki sympathizes with Lina, who is also looked down upon by her family, and decides to help her find a new job. However, Hideaki notices Lina's overly ample breasts and gradually finds himself unable to suppress his desires…
