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.
That buzzer sound... that's like when you
 give the wrong answer on a quiz show.
ذلك الصوت... أشبه بالذي نسمعه عند قول
 .إجابة خاطئة في برنامج تلفزيوني
Der Buzzer von eben … Der kommt,
wenn ich etwas Falsches sage.
El ruido que escuché
es el de cuando te equivocas.
El ruido que he oído
es el de cuando te equivocas.
Ce drôle de bruit retentit
quand je fais une erreur.
Quel suono che si sente poco prima è come
 quelli delle risposte sbagliate nei quiz televisivi.
Aquele som... é o mesmo quando você
erra uma resposta do quiz.
Звучит жужжалка... Будто ты
неправильно ответил в викторине.