A member of the high school art club called Sakuko falls into the sea while sketching a boat. Witnessing the incident, Saibara creates a painting titled "Drowning Sakuko" and wins an award at a contest, leading the painting to be displayed at school. Moreover, Saibara takes the liberty of announcing that she will paint Sakuko for her next piece during a newspaper interview. Frustrated by the situation, Sakuko gives up on her artistic path and attempts to create a new work with the motif of a "boat" in her home, which is scheduled for demolition.
Shibuya Haruko is a high school student living in Tokyo. One night, she is instantly smitten by Kanagawa Kenichi, who is lying prone on a bridge. But Kenichi becomes far more interested in a girl he impulsively hits on, Mayumi, over the high-spirited Haruko.
Kou created songs and uploads them to the Internet, and Yuka and Saki enjoy his music as fans, always listening with deep interest and admiration. Their final summer vacation has begun as junior high school students.
In March, 2017, at a small town, six boys and girls are selected through auditions. They work hard to prepare for a play, but the play is suddenly cancelled. These young people are disappointed at the news. One girl says "let's practice." The six boys and girls want to stand on stage no matter what.