Okarun and the girls try to clean up some misunderstandings with their classmates. Later, the aquatic creature reappears before Momo and Aira.

Momo's childhood friend Jiji has come to stay with the Ayases. He explains that he needs Seiko’s help with some strange phenomena at his house.

On the way to investigate the Enjoji house, Okarun feels uneasy about Jiji's closeness to Momo but finds himself drawn to his friendly nature.