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!
If they're willing to fight for me, 
this might be a win-win.
Es könnte sich als Win-Win herausstellen,
wenn sie gegen mich kämpfen würden.
Si quieren enfrentarme,
todos ganaremos.
Si quieren enfrentarme,
todos saldremos ganando.
On sera tous gagnants,
si ce sont les combattants.
Se vogliono davvero combattere per me,
la situazione è vantaggiosa per entrambi.
Se eles todos lutarem, pode ser vantajoso.