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?
Hey, I saw you yesterday!
Hey, ich hab dich gestern gesehen.
¡Oye, ayer te vi!
Hé, je t’ai vue hier !
Ei, eu te vi ontem!