Hatsukoi Summer Romanesque

On the first day of summer vacation, Hoshino Yume happens to wake up early and go out in front of her house to take a walk. Then, there was an unknown boy in front of him. Yume guided the boy to the park and met his classmate Haruka Kamiya. In reality, the strange boy is Haruka's cousin Hotaru Himuro. This encounter marked the beginning of a long summer for the three of them.