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?
Huh? What do you mean?
Hä? Wovon laberst du?
¿Eh? ¿Qué quieres decir?
Hein ? De quoi tu parles ?
हह? क्या मतलब?
Hã? O que quer dizer?