Classmate no Okaasan

Jun is in his second year of high school.

He loves a female teacher, Keiko, though she is much older than him.

He joins a badminton club that Keiko is in charge.

Luckily, there is no other club members and he enjoys practicing it with Keiko after school....

One day, a girl talks to him.... It is Keikos daughter, Sae.

"My mother talks about you a lot at home." Also, he finds that her husband passed away ten years ago.

Triggered by this fact, he makes up his mind to tell Keiko that he loves her....