Kuroshitsuji II

Dark and edgy stuff found by yours truly the grim reaper edgelord crow

Every once in a while, a much-awaited sequel to a popular anime comes out and baffles the audience with unwelcome anime-original story changes coming as a result of diverging from the original author's style and vision.

Or, in a similar vein, the IP holder decides it's time to resurrect a story that was by all means finished (or close enough to it) with a completely unnecessary sequel or side-story that fails to live up to the original and makes the whole franchise worse just by existing. Even worse if it retcons the original to invalidate a major dramatic plot point just so that the sequel could happen.

In either case we're left with something that many fans will plead you to pretend it doesn't exist, and honestly... you should probably listen to them.

This list doesn't include manga/LN adaptations that started diverging from the original storyline already in their respective first (or only existing) seasons.

This list also doesn't include sequels that people actually asked for but they ended up horribly made (i.e. Berserk 2016, One-Punch Man S2).

It obviously doesn't include sequels that adapt bad source material without changing it (e.g. Food Wars S4 onwards); while a caring adaptation team will sometimes try to remedy the faults of the source, it's not expected of them to do so.

Fate and Gundam franchises aren't included simply because I just can't pick anything in particular from their enormous(-ly bloated) universes as an example of something unnecessary. You aren't losing anything by ignoring most of them.

See also the counterpart to this list: Sequel f'n when? It's been years! https://myanimelist.net/stacks/2347

This list constitutes my personal views and stances. If something isn't on it, it likely means I haven't seen it or don't have an informed opinion on the matter. Feel free to shoot me suggestions via DMs, but make sure you have a convincing argument if it's not something that's already on my main manga/anime list. I don't promise it'll end up here, but I will consider all suggestions.

Watch order for Kuroshitsuji.

All the explanations are also in the descriptions but to sum it up:
Due to being caught up to the manga, first season of Kuroshitsuji had an original non-canon ending, which then was followed into the second season: Kuroshitsuji II.

Few years after those came out, we got "Book of Circus" which completely ignored all of the anime-only content from the previous two seasons, and instead simply adapted the manga arc that happens right after episodes 13-15 in Kuroshitsuji.

Because of all this mess you now get a choice of skipping the non-canon episodes and only watching those that were adapted from the manga. Whether you /should/ do that is all up to you. People generally prefer the manga adaptations, but Kuroshitsuji II also has a fair share of fans and introduces new characters that some people like.

Animes that are on netflix that are either exclusives to Netlfix or not on popular services.

My stack about some of my favorite animes that I watched every single one myself, containing Demons,Demon Lords (Maou), Djinn and even Yokai.

The demons can be the antagonists, protagonists or even a mean for power.

Some of them may take longer for the demons to appear, some of them will include demons/demon lords starting from 2nd Season.

As for the rating, I leave that to your own judgement and tastes.

Anime Set In Great Britain 2: https://myanimelist.net/stacks/36936

Sequels that had a considerably worse reception than the first/previous seasons.

The most common causes is continuing a story that fans considered completed or a bad/rushed adaptation.

Not including reboots/remakes/alternative versions.
Not including airing seasons nor seasons from less than 2 seasons old after airing.
Not adding sequels that had a score higher than its direct prequel, no matter if its score is lower than the first season, for example:

S1: 8.5 S2: 7.4 S3: 7.6
In this case I won't add the third season.
Not adding inter-season OVAs either but adding sequel specials meant as finale.

This is NOT based on my personal opinion although I might leave it here but it won't have any influence on the scale.
This list is MAL's score-based.
With "best" season I refer to the season with the highest score.
Difference must be more than 0.50 points unless next season of a previous one that was put here has a lower score of more than 0.1

One of my favorite anime tropes!

I love anime that feature what is normally a "background" character that is the perfect butler or concierge. They're good at seemingly everything - cleaning, cooking, mending ... you name it, so the master never has to worry. Oh and if things get dicey, it turns out the Butler is also secretly (or not secretly) Overpowered and has amazing martial arts or magical powers.

You know that butler! You might have seen them in these anime, sorted in Alphabetical Order.

Circus? Murder? A straight-forward list of the series that comprise the "Kuroshitsuji" anime, including both manga adaptations and anime-original material.

This stack contains 50 anime series that presents a non-human protagonists.

As for the genres/themes, you'll find many from Action, Gore, Fantasy to Comedy and Isekai.

I leave the rating to your own judgement.

Psychological/horror/dark mystery/dark fantasy/gore from my completed/watching now list Pt 1
Pt2: https://myanimelist.net/stacks/18406

Adaptations that share nothing with their source material but the title, some characters' names, and maybe even the premise, to the point you could change the title and no one would tell it's an adaptation. Remakes/reboots/sequels/localizations also included.

Following the anime continuity is weird

These are animes that have main characters that have both black hair and red eyes, this also includes characters that turns their eyes red.

These are the ones I have personally watched or can recommend based on friends.