The first midterm test after entering high school came. The top student in the entrance exam, the top student in her grade... Yume desperately tries to protect her position, and confronts Mizuto, who doesn't seem to be studying much. In addition, Yume grabs onto Mizuto, who took a certain action during the test. However, Mizuto couldn't keep quiet when Yume blamed him unilaterally, and he unintentionally attacked her.