Japanese DVD Seishun Rapsody. ～ Tokimeki Water Girl

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

The main character, Hikari Aoi, is a second year junior high school student who loves swimming. He creates a swimming club with his friend Chie.
One day, Hikari was moved by Seiko's fast and beautiful form of swimming. One day, he invited Seiko to the swimming club, but he refused.
To invite Seiko to the swimming club, he made a promise that he would compete in swimming and if he won, he would join the club.
On the other hand, Seiko made a promise that if he won, he would receive Yusuke, Hikari's childhood friend.
The days of Hikari's begins.