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, where's Tonkawa?
Hey, wo ist Tonkawa?
Oye, ¿dónde está Tonkawa?
Où est Tonkawa ?
Ei, pra onde Tonkawa foi?