Falfa woke up in the form of a slime! Of course, that's not too shocking since she's a slime spirit, but her sister Shalsha laments that this has never happened before and she doesn't know how to change her back.So Azusa sets off with Shalsha and Beelzebub in search of an "unusual slime" who might know a way to change Falfa back...
She's right. We never finished that battle.
.إنّها محقّة. لم ننهِ معركتنا أبدًا
Sie hat recht. Unser Duell von damals
haben wir irgendwie nie beendet.
Es verdad. Aún no nos enfrentamos
por segunda vez.
Es verdad. Aún no nos
hemos vuelto a enfrentar.
C’est vrai
qu’on ne s’est pas affrontées depuis…
Ha ragione. 
Non abbiamo mai concluso il nostro scontro.
Verdade, não chegamos a terminar
a última batalha.
А она права, мы в тот раз
 так и не закончили бой.