Professor Amanogawa, who is also Ami's sensei at the Guardians' high school, anticipates the return of a comet visible from Earth. Ami, who is excited about it, invites Taiki Kou of the Three Lights but he tells her the weather forecast is 100% rain, stating that the comet will not be seen before Taiki leaves. Ami tells him that she believes that they will be able to see the comet. The next day it begins to rain, and it looks bad for viewing of the comet...