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.
The black mask and "shu-koh, 
shu-koh" reminds me...
...القناع الأسود و"شوكو شوكو" يذكّرانني
Wenn wir von schwarz gekleideten
Bösewichten reden …
Hablando de respirar por máscaras…
Hablando de respirar por máscaras…
Cet ennemi vêtu de noir
m’a rappelé un truc.
La maschera nera e lo "shuko shuko" mi ricordano...
A máscara preta e
"shu-koh shu-koh" me lembra...
Кстати, маска и звуки
мне кое-что напомнили.