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?
--Yes! He won! Awesome!
--Whew!
Super! Er hat gewonnen!
Das war der Hammer!
-¡Sí! ¡Ganó! ¡Asombroso!
-¡Uf!
Ouais, t’as gagné ! Tu déchires !
-Isso! Ele conseguiu! Fantástico!
-Ufa!