Each of the rooms of the expanded Kings Dragon will have a few events with the Chosen (and occasionally other guest characters). For the Dojo I needed at least one with Bella.
This is obviously a very long video, so I thought I'd do a breakdown.
The first part is animation; it's actually using video motion capture; this is 5 different martial arts combinations blended together to form the final 640 frame clip. And 640 frames of the final image would destroy my poor PC. So let's cheat.
The first thing I did was strip out the background. It doesn't change, so rendering it 640 times seems a shame.

Secondly, I ran this at quite 'low' iteration, meaning the number of times it does a raytrace of the character. Normally I do 5000 iterations, and 98% 'convergence'. For the animation I did 600 iterations and 95% convergence. Which put each frame at something like a minute.

The one on the left is the 600 iteration one. Body looks okay, but the hair is a mess. I ran it through the Intel denoising AI, and that gives us the right hand side. Good enough for animation in motion.
The resulting animation is still 24 FPS, so to hit our plan of doing 60FPS we now run it through another AI network, Twixtor (which has replaced DAIN as my frame interpolation software).
The final video also adds motion-blur, which smooths things out a little. Now I just need to write the sequence :)