Intriguing Secrets

The midsummer sun's rays enter the courtyard. Umehara of the school's art club is commanded to do weeding as a punishment with Mizue, a classmate he doesn't get along with. It was supposed to be the worst scenario Umehara could find himself in, but he begins to have a crush on Mizue and cannot tell anyone about it. Suddenly, Mizue asks Umehara, who puts his feelings into his paintbrush, to draw a picture of him...?! The two of them end up spending time alone in the art room after school. What is...