Mirai has to re-take a test after getting a low score in maths, a subject she has trouble getting excited about. Despite Riko's best efforts to teach her, Mirai keeps getting distracted, particularly when it is assumed a Linkle Stone is at school. After noticing how hard Riko is working to learn how to write Japanese, however, Mirai decides to work harder in her own studies. On the day of the test, Riko does some sky writing to give Mirai some encouragement, allowing her to work hard. Afterwards, Gamets attacks with a Soccer Ball Yokubal, but the Cures manage to defeat it using the power of their new Linkle Stones. As Mirai gets a passing grade in her test thanks to Riko's help, a Moonstone Linkle Stone comes from the moon in response to a flower mark that Ha-chan drew.