The panty panic is back! Now, everyone together! "Panty Panic! Panty Panic!" Many things are revealed, including the relationship between Yuta seeing panties and the end of the world.
I think they had a Christmas party or something.
Ich glaube, sie hatten ’ne
Weihnachtsparty geschmissen …
Creo que tuvieron una fiesta de Navidad.
Creo que celebraron una fiesta de Navidad.
Elles ont fait une fête pour Noël…
Mi pare abbiano fatto un party di Natale, 
o una roba del genere.
Elas tiveram uma festa
 de natal ou algo assim.