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.
All of our searching, all of our 
training is fading out into the past.
Ah, such, probier aus
oder lass die Zeit verstreichen!
Toda a nossa busca, todo o nosso
treinamento está desaparecendo no passado.
Все наши поиски и старания
сгинут, в прошлом будут затеряны.