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?
Mm-hmm, I've thought
you were troubled all day.
Mmm, todo el día pensé
que estabas preocupado.
Hum, certeza que não
sentiu isso o dia todo?