Cecilia takes a liking to Ichika and gives the position of class representative to him instead as an apology for acting childish in the two previous episodes, much to Houki's dismay. The next day, Ichika meets Lingyin Huang, the new transfer student from China who also happens to be his childhood friend as well as the class representative of her class. After Ichika and Lingyin get reacquainted with each other, Houki and Cecilia get jealous. Upon learning that Houki is Ichika's roommate, Lingyin tries to get Houki to let her become his roommate instead, to which Houki refuses. Lingyin later leaves in anger after Ichika fails to figure out the childhood promise that they had made in the past, as she wants to settle it in a class league match of the IS tournament. With his match against Lingyin with her Shenlong soon approaching, Ichika prepares himself.