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?
Oh, I don't have any lunch.
Geht nicht. Hab nichts dabei.
Oh, no tengo mi almuerzo.
Non, j’ai pas à manger.
Ah, eu não trouxe nada para comer.