I initially dropped this at episode 2 after reading the reviews. I felt like this was going be a 'bully him until he snaps and then we'll congratulate ourselves on being right' sort of thing but reconsidered and started watching again. At episode 20, I've dropped it for good.
I think it's best to decide for yourself if you like something or not and if you, like me, decide that it's not your sort of thing, it wasn't time wasted. You tried something new and made a decision on it. That's just life.

This whole plot really could have been something. It's main focus was on karma. Every action, every laugh and tear caused, will come back to you. There are 4 timelines to this story. The original that we open with, the 'past life', the 'ancient past life' and the altered timeline.
When reading the reviews, it would seem a lot of people didn't like the first time line of the Ancient past life arc, which we see second, between eps11. and 18.
Going back to what I just typed about trying things out for yourself, this was my favourite part of the 20 eps I watch LOL I wish that had been a series by it's self, I loved that concept and I actually really loved the set and designs. It felt like a fantasy fever dream and the drama kid in me is ok with that. It's also the basis of the entire plot. The whole story starts with what happens in this arc so it was meant to be there. It's the foundations of everyone else's karma. The past is paid for and the future is written with every choice we make, even if we're think we're doing a good thing.
Unfortunately when we came back, I could already sense that the writing would start to dissolve. When I start to feel that way, I watch the last episode and decide if it's worth it and have ultimately decided that it's not.
I probably would loved this kind of show as a teenager but I'm now well into my adulthood and this sort just doesn't entertain me anymore.

So I join the ranks of the more critical reviews where I feel like, there was a masterpiece in here somewhere, the general idea, the costumes, the superhero movie cgi fight scenes, but the execution was dissolving into something quite childish and some sort of lack of understanding of how to properly communicate with people. Emotional maturity will teach you that nothing ever good comes from lie. There is no such thing as a good lie. When I got to the 'he keeps his distance because he likes you, lets seduce him' story line in 19, I can feel the annoyance coming in the following episodes as though I was going to start schooling my teenage nieces. When I skipped to the end, I can see that that attitude doesn't change and when you are world weary, regardless of age, that isn't entertaining.

It's definitely has it's audience as with everything but I feel like I've long outgrown this kind of show.

Leaving on a brighter note, I actually really enjoyed the music in this one. I'm in shock. I genuinely loved the background sad music that was happening. There's a genuine ache to the pieces I was hearing along with just enjoying the emotion in the instrumentals. So silver lining perhaps? To my surprise I found some chinese songs to add my playlist. So you see?
Nothing is ever futile.