Yukari is a mother-in-law who lives with her husband's stepchild Yoshio in a house where her husband is away from home. Recently, Yukari has become conscious of Yoshio as the opposite sex, but there is no way she can convey such feelings. However, I was delusional about Yukari, who was confused by her friends, thinking about Yukari! When Yukari and Yoshio realize this, what will happen to their love...?