In the Otsuki family, the father, Yoshio, will be posted overseas for a long period of time... ◎The mother, Hibiki, and her two sons (Haruki and Yuuma) will spend time at home.As his father continues to be absent, the eldest son, Haruki, vows to ``protect his mother,'' and develops strong feelings for his mother.For a month, his younger brother, Yuuma, sees this and has mixed feelings, and eventually realizes his own feelings for his mother.The brothers share their feelings, steal their mother, and reconcile with each other, understanding each other, and seeking each other.
