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?
I don't mean that!
Das meinte ich nicht!
¡No quise decir eso!
Non, pas ça.
Não, é sério!