Tsukumo Yoshimi

She married her husband of three years after an office romance. However, soon after their marriage, she gains a lot of weight, and her husband's love for her rapidly cools.

After falling madly in love with Yuusuke's gentle personality, she begins to make efforts to become as beautiful as before. However, it is not because she is trying to be a good girlfriend, but simply because she does not want the person she loves to see her disgusting behavior any more.