Yuta Hibiki wakes up in the home of his classmate, Rikka Takarada, with amnesia. A voice from an old computer, identifying himself as "Gridman," has a mission for him, but can he even survive the next day of school without his memories?
--This isn't good, huh?
--Right, but what is that? I don't get it!
Der hat ’ne Schraube locker!
-Esto no es bueno, ¿eh?
-Correcto, ¿pero qué es eso?
– Il a un pète au casque ?
– Un gros.
-Isso não é bom, é?
-Sim, mas o que é? Eu não entendi!