In terms of webnovels, especially Chinese webnovels, this is frankly amazing.
The protagonist is not a murder hobo and has actual morals; he doesn't randomly hate characters just because they are vaguely against him but actually tries to understand others. The romances make sense, with maybe an exception going to the princess/fiancée at the start. But even then, as the story progresses, their relationship grows more genuine, and they act closer to a bickering couple that secretly cares for each other.
As of chapter 553, there are only four heroines, each basically getting a volume to themselves. The romance doesn't feel too rushed or forced, as you see why the heroines, and also Muen (which is rare), grow to like each other. The heroines also actually do stuff.
Also, defending against some of the other reviews:
The reviews calling Muen stupid... confuse me, given the drugging thing was arguably his best course of action, but he hadn’t yet realized how the actions leading up to it completely messed it up. He knew he should be fine after the condemnation.
Do I need to spoiler this because another review kind of alludes to it? Whatever....
Spoiler:
He actually wouldn’t have been fine because of his maid, as he realizes that the original Muen wasn’t on the streets due to not being able to live as a commoner but because he had to escape the maid locking him up. But at the time, no one knew that, so you can't hold that against him.
Calling him stupid because he didn’t yet have the information needed to know how the plan would fail (not going to spoil it, given other reviews outright said it) with knowledge in hindsight makes no sense.
As for the maid doing the basement ending. Firstly, it wasn’t luck he got out. He very obviously planned the escape, and it’s common reading/watching knowledge that monologues and thoughts don’t actually take time. So complaining he was stalling is confusing. In the novel's real-time, he did just straight up break out and try to leave. The time after was used to explain what the plan was, why it wasn’t luck, and what he would do next.
Also, the maid was stronger than him, so complaining he isn’t trying to kill... what? Anyway, that whole arc is about how the maid realizes the flaw in her logic and grows to more naturally like Muen instead of having an obsession.
Also, literally none of the characters are actually yandere. The maid was only yandere during her arc before she learns that it is a bad idea.
Flaws:
The whole drug thing is iffy as it does feel a bit off and it happens again with the princess later. (Although in both cases, it isn’t really Muen’s fault, more so for the second.)
There are dealings with the underworld, and the characters there are clearly... not the best. Depending on how you feel, you may feel uncomfortable with that.
You might feel the way intercourse is used is a bit crass. Nothing smut-related really happens; it is skipped, but it is clear that it does happen. Most of the time with full consent, but sometimes not (like with the princess), although usually Muen is the one who doesn’t want to do it, which is a bit weird. I would say it makes sense for the story being told, but you may just not like that.
Oh right, the whole "turning the lesbian straight" thing is extremely weird. If they were bisexual, it would be fine, but given the way Chinese novels go, I don’t think they would even acknowledge that exists. Although it basically hasn’t happened yet, and she still very much dislikes Muen, it does get weird when:
Spoiler:
She ends up hiding as her childhood friend (the saint) ends up having sex with Muen, and she realizes the person she likes is him and not her.
