Futari wa Precure Splash Star 46
With all the revived villains defeated, it's time to finish things once and for all! ...Realising this, Michiru and Kaoru try to do the stupid thing and head back to Dark Fall alone in a reckless attempt to retrieve the Fairy Carafe without putting the Cures in danger. Naturally, when Mai and Saki realise what they're up to, they are having none of this, and after a little back-and-forth argument that proves everybody has their priorities straight (making Minori happy is the most important thing in the world, trufax), they all agree that heading to Dark Fall together is the right thing to do.
So off to Dark Fall it is, and oh look! The Fairy Carafe is just standing in the middle of nowhere, completely unguarded! Could it be a trap, by any chance? The Cures and friends certainly think so, and unsurprisingly enough, the moment they get near, they are ambushed by both Gohyarn and the great Akudaikaan himself.
There's a fair bit of fighting and impassioned shouting between the two sides, but the part that really gets Akudaikaan heated up is when the Cures point out that, far from his stated objective of destroying all life, he's actually created two beautiful lives of his own accord in Michiru and Kaoru. The very thought that he, Akudaikaan, could be responsible for creating life rather than destroying it is enough to get him so angry that he blows up his entire castle, dark throne and all, and actually stands up. Thaaaaaaat's more like it, now you're really towering over the Cures like a proper final boss!
By the end of the episode, the Cures are all powered up with their Spiral Rings, and combining powers with Michiru and Kaoru to create extra-strong barriers (though still not quite strong enough to keep Akudaikaan's attacks entirely at bay, natch). The final battle is well and truly here! It's okay though, there are still three whole episodes left to win it. You can take your time and beat him slowly, guys!