It's day one of the festival, and Rimuru finally gets to see all of his friends' performances and presentations. As he's enojying the festivities, he's summoned by Luminus...
We were probably subject to their effects 
the moment we crossed worlds.
كنّا خاضعين غالباً لتأثيراتها
حالما عبرنا من عالم لآخر
Ja, als du in diese Welt kamst,
ist bei dir irgendwas passiert.
Algo nos hacen al cruzar entre mundos.
Algo nos hacen al cruzar entre mundos.
C’est le cas dès lors qu’on a voyagé
entre deux mondes, je pense.
Dev'essere successo quando
siamo arrivati qui dall'altro mondo.
Assim que cruzamos entre os mundos
já estávamos sob seus efeitos.
Скорее всего, при переходе между мирами
они что-то изменили в наших телах.