So, what Im looking for is something with a male protagonist/lead who is secretive about his past, or kind of cool-y withdrawn because of some tragic past, like Eun Dae Goo from You're All Surrounded, or Choi Moo Gak from The Girl Who See's Scents. Some romance would be preferred, but isnt necessary, but if there is romance, I would like for it not to be a love triangle. Any theme/setting is fine, really.
Thanks for any help with this.