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?
I'm fine, I'm fine.
Ist nichts passiert!
Estoy bien, estoy bien.
Ouais, ça va !
Estou bem, estou bem.