Chiyu offers to help out at her family's inn for the weekend, where she learns about the importance of good hospitality from her mother and grandmother. She also meets an English speaking family with a young daughter named Emily, who are staying at the inn. Chiyu takes the three sight-seeing, but notices Emily seems unhappy although she does show an interest in the local park. Chiyu learns from Emily that she will be moving to Japan but is worried about not having any friends, so Chiyu promises to take her to the park the next day. However, Shindoine creates a MegaByogen to infect the park, but the girls transform and manage to defeat it and the Rain spirit gives Chiyu a new elemental bottle. The next day, Chiyu takes Emily to the park with Nodoka and Hinata to play, where Emily is able to make friends before leaving with a smile.