BJ Alex

The LI was pretty much a jerk at first. But towards the middle and end the LI definitely got better (character-wise) and the relationship blossomed quickly. Plus the book got into a bit of the LI's backstory which explained why he might have acted like an a*s in the beginning. The side character's story was amazing as well - love Chanwoo and MD!! Points given for cute art style.

The manhwa does contain a certain degree of dubcon in some scenes though.