DramaAjumma

Well.... it could just one of his many hats. I don't think XS quite believes that story.

From what I've seen, he is really Su Fu , RY's betrothed but he also seems to be well-connected to various agencies. I do wonder if he's an agent for hire.

If you'd like to spend more time discussing it with like-minded people, there's a thread here... https://forums.soompi.com/topic/429594-current-mainland-chinese-webdrama-2020-miss-truth-%E5%A4%A7%E5%94%90%E5%A5%B3%E6%B3%95%E5%8C%BB/
There's only a few of us but we like the show.

It's not a simple matter of whether he's a good guy or a bad one. The problem is that his existence is a shadowy one. He is a man of multiple identities... a spy in effect... which is why even he realises in the end that he can't have a normal life with RY because who is he fundamentally will always be in question. He isn't just the son of a concubine with a sob story as she was initially led to believe.

This is why I don't root for him to be with RY. They are on entirely different trajectories that seem to intersect because of the search for the pearl. She is a truth seeker like Xiao Song. SF, on the other hand, may or may not be working to undermine the current regime.

The only way you'll know is to give it a go. ;)
Personally I never found it boring and slow. I was always amused by the protagonist.

Not especially. It's not much of a love triangle if you ask me.

I have no doubt that SF is genuinely in love with RY. The deception lies more by way of what he hasn't told her than outright lies. I just don't know how she would take it seeing that much of her life has been shrouded in deception about her mother's death.

I signed up to this site just to say how much I'm enjoying this drama and Toby Lee's performance. I'd not heard of him before but he's terrific. He's certainly making the character his own within the Sherlock Holmes template/oeuvre.
I'm also loving how the show meticulously deconstructs the cases.

One of my favourites this year. Great ending especially seeing XY's reaction. The highlight was discovering Chen Zheyuan. That kid is going places. His XY was a joy and delight to behold.
This adaptation is one of the best I've seen in recent years and has one of the best endings from a C drama that I've seen.

His attractiveness for me increased fourfold from how good he is as a cop... how well he adapts to circumstances.

The problem I have with Su Fu is that he's purposefully or inadvertently wooing her under a cloak of deception. That's not going to end well surely. Sure he's something of a hottie and has got some moves but it doesn't take away from the fact that he's using her to achieve his mission in ways she probably wouldn't approve of. It's true that XS uses her too but he does it openly and the two are constantly negotiating and bargaining. He's an open book to a large extent and as far as their relationship is concerned, it's evolving. Moreover, they both challenge each other to be better... whether they know it or not. The show I think is also at pains to show that the foundations of RY and SF's relationship are rather shaky. As far as he's concerned, she doesn't have all the pieces.

I agree that there's an interesting Pride and Prejudice scenario playing out.