There are still monsters about, and the gang is spending their days fighting them.  They go to school during the day, and when they're not at school, they protect the city from monsters.  But their peaceful routine is interrupted by the arrival of Mana Livingstone: a transfer student from America who's got the craziest ideas about Japan!
So it's good that we take the 
Monsters out like that...
Mag schön und gut sein,
die Monster so auszuschalten.
En resumen, está bien
que derrotemos a los monstruos,
En resumen, está bien
que derrotemos a los monstruos,
Bref, c’est bien
de chasser des monstres…
Bello riuscire a distruggere 
così quei mostri, eh...
Deixa eu ver se entendi: então é uma
boa exterminar os Monstros assim?