The three Invaders return to their home prefecture of Hokkaido for a required summer school day. On the bus ride to school, Mone starts talking about Hokkaido's seven folk legends while Chihori shares random facts about space. As Yuina responds to the girls' wacky conversation with her usual comical comebacks, she is overcome with a very strange feeling about the situation.
But you're the one who 
came up with it, Mone.
.لكنك أنت من ابتكره يا موني
Ja, aber du bist es doch,
die sich den ausgedacht hat.
Es que lo inventaste tú, Mone.
Es que lo pensaste tú, Mone.
À l’origine, c’était ton idée,
je te signale.
Eh, ma sei tu quella
che se l'è inventato, Mone.
Mas foi você que inventou isso, Mone.
Так ведь это ты мне его придумала.