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.
Wha? The old time slip trick?
ماذا؟ خدعة زلّة الوقت مجددا؟
Was, wie in einem Time-Slip?
Quoi, un voyage dans le temps ?
Eh? Parli di un salto nel tempo?
Quê? O velho truque do lapso de tempo?
Старая-добрая временная петля?