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?
Today was pretty rough, huh?
Heute war echt die Hölle los.
Hoy estuvo bastante duro, ¿eh?
Quelle journée d’enfer…
Hoje foi bem difícil, hã?