Class A agrees to fight the three teachers (Rerugen backed out, not wanting anything to do with the other three) while Ainz, Tanya, Subaru and Kazuma must deal with Destroyer. It’s a great realization of the potential of putting these four together, and an appropriate way to end the first of at least two seasons of this super-deformed super-crossover.
Tanya’s shield gives Ainz time to cast Effulgent Beryl, pushing the spider back, and he then summons an entire army of chibi undead soldiers, many of whom flock around a very uncomfortable Aqua as Emilia smiles cheerfully, happy everyone’s getting along.
Ainz leaves the rest to Tanya, who flies Subie and Kaz up into the air. Subaru volunteers to fall first, cleverly using his Return by Death to attract a column of undead that serve as a shield against Destroyer’s beam. Kazuma then jumps, casting “steal”, which actually works for once, only not on underwear, but on a bolt holding one of the spider’s legs.
Finally, Tanya swoops in and grabs Destroyer’s purple headband, earning them the victory and 100 million points…but pointedly not the reward of returning to their respective other worlds! Turns out Roswaal’s “maybe” meant just that…”maybe.”
That said, the class is in agreement that this new world and school life aren’t that bad. It’s a good attitude to have considering they’re in store for at least twelve more episodes there, with a fresh batch of “transfer students.” Will the likes of Clementine, Mary Sioux, Priscilla, and Wiz be among them? We shall see, next season.