At Binan High School in the city of Binan, Japan, Yufuin En and Kinugawa Atsushi, along with along with Naruko Io and Zaou Ryuu, enjoy leisurely high school lives while hosting meetings of a do-nothing club called the Earth Defense Club.
In other words, if we want to use the room, 
we need to officially register as a club.
Wenn wir den Raum also nutzen wollen,
müssen wir uns wohl als Club registrieren.
Entonces, si queremos usar el salón, 
debemos formar un club oficialmente.
Vamos, que si queremos usar esta habitación, 
tendremos que formar el club oficialmente.
En plus de réserver la salle,
In altre parole, se vogliamo usare questa stanza, 
dobbiamo registrarci come club.
Em outras palavras, se quisermos usar esta sala,
 vamos ter que registrar o clube.