Haga Ineko (Michiko Kichise) passed her teacher's exam with the encouragement of the kids in her 4-3 class. Haga is 36-years-old wants to say that she is still single, but her boyfriend and ex-assistant home room teacher Wataru Shioda (Jun Kaname) proposes. While Haga looks at the engagement ring given to her by Wataru she feels happiness.