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?
--Not at all.
--Ah, watch out!
Gerne doch.
-Por nada.
-Ah, ¡cuidado!
ओह, शुक्रिया।
-Imagina.
-Ah, cuidado!