I hope I can help you. There's this manga called "Canis", you can find it here. Maybe you've read it already, but still a summary:
Satoru, a famous hatmaker with employees issues found a wounded stranger on his why home, after knowing the starving stranger- Ryou better, Satoru Beginns to notice his unusual backgrounds. As he asked Ryou why he came to Japan, Ryou simply replied "I came to die." Eventually Satoru has to decide whether he wants to know Ryou or keep the distance...
It's one of my absolute fav among every BL and Yaoi I've read. At least for me both of them have unique personalities and the relationship development was handled with great care by the author, Zakk. The manga has two different story the first one is "Dear Mr Rain" and "Dear Hatter" about Satoru and Ryou, the second half "The Speaker" is about other important characters, I'm yet to read it, but so fare I'm loving it.
Thank you for the recommendation, I checked it and today started reading and now I can see why you love it so much. It really is interesting and the characters...damn. The whole story is so how could I say it..human like. They have problems, they gain and loose, have personalities. (๑•ㅂ•)و✧ I'm in love
Now that I saw original!Taemin and Minwoojin as a couple, I want to see more shounen ai or yaoi with similar characters..any idea?
(I mean both of them are seme-like, but still not the bara level)