I'd be interested too - he was one of my favourites.

I love kind male leads! As far as historical dramas I think these ones fit what you are asking for best.

•  Ashi Girl
• Dong Yi
• Shuttle Love Millennium (the character Zhang Zi Gang)
• The Legend of White Snake
• An Oriental Odyssey (spoiler:  vague ending that could be interpreted to be sad)
• Queen In Hyun’s Man

I also have a list on my profile of puppy male leads that includes more modern dramas as well. I wouldn’t say all the male leads on that list are elegant but they are all kind. A couple of modern ones on that list that have both kind and elegant male leads are Innocent Love and Kimi Wa Petto (2017).

 itscelina :

His elegance reminds me of Leo Luo , if you like Su Mu then you may want to try some of Leo's dramas :) Most of Leo's historical characters are like that.

Ok, I will! I got interested in Luo Yun Xi when I read he's been cast in Immortality, the webseries adaptation of The Husky and His White Cat Shizun (Luo is Chu Wan Ning). I'll have a look at his other roles.