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?
--Where is this place?
--Home. This is the shop.
Wo bin ich hier?
-¿Dónde está este lugar?
-Mi hogar. Este es el taller.
– On est où ?
– Chez moi, au magasin.
-Que lugar é esse?
-Casa. Aqui é a loja.