After a failed examination, Chigusa-sensei assigns Yuusuke to tutor Midori in the hope of bringing her grades up. As an incentive, she tells Midori that Yuusuke will give her a reward if her test results are above average. Wakaba mishears this, and soon a rumor that getting an above-average test result will allow you to receive a reward from the person you like goes around the entire school.
Despite Midori's efforts, she falls short of obtaining above-average examination grades. Yuusuke, however, still decides to reward her for trying her best. Midori asks for a hug, and in the process accidentally kisses Yuusuke, which in turn causes him to remember his past memories and feelings for her.