marked as remake since this is a reencode

Thank you. I'll mark it in the future.

There's still noticeable smudging here and there, which can be attributed to using a bad source, but overall I'd say I'd expect some more bitrate for a 1080p series with this liberal use of CG and complex motion to preserve sharpness. And more importantly there is still banding in the darker scenes (e.g. at 20:46 and the following park scenes), again coming from the source, so I'm not at all convinced that using 12-bit encoding provides any benefit at all here, let alone one worth sacrificing realtime playability on the older and mobile devices. If you wish to make highly efficient, future-proof encodes, it's probably worth waiting for BD raws to surface so that at least they look good, because this doesn't, so there's no point archiving it either.

Hi.. This may only for people like me who want fast releases and store them as it is while saving some space or for people who don't have a fast connection or those that want to save their bandwidth. As I don't really re-download Animes I've watched on its airing when its BD version release, except for the Anime that I really like. But thanks for your feedback. I'll up the bitrate a little bit for the next ones.

More importantly, consider going back to 10bit because 12 won't do here what you expect it to. The benefits of bit depth scale worse than bitrate consumption (unless you have debanded+dithered or lossless source, in which case it cancels out), so every bit added has only half the impact of the previous one which you have to weigh against simply increasing bitrate at 8/10bit accordingly. And the benefits of using 10bit are already wasted on a non-debanded source since it won't bring the missing detail back. The only tangible benefit in this case is that banding won't get worse, but that's it—whereas the decoding hit is real. I don't even think there are any hardware 12bit decoders out there, so you can't accelerate the video decoding with e.g. Cuvid/QS, so it's really just adding problems while consuming bitrate for no benefit. I mean had you had a pristine, properly preprocessed source with abundant and very smooth gradients or fade-ins/fade-outs, going for 12bit COULD be worthwhile, and you have neither, so…

Yes, I’ve been going back to 10-bit for broader compatibility. I figured out the latest stable version of VLC also can’t play 12-bit. Thanks for your input. Do you have any experience encoding with Nvenc H265?. If you do, how's it compared to x265 in term of quality and compression efficiency? I'm considering using it if it's not so much different.