Loving

The last episode of KO was reproduced to a certain degree in my stubborn special episode! Same dish washing scene, and being lifted to be placed on the kitchen table! Though they diverge afterwards, still that "sink scene" is very much alike!
Both couples show incredible chemistry and their insatiability with each other!

Both in Dear X (Korean) and Golden feathers (Thai short BL drama) we find the trope of half brother and sister trying to sick together through thick and thin! The brother does his best to protect the sister.
In both dramas, the brother finds solace in another man. In Dear X he is mainly an enemy turned close friend but in Golden feathers, it is the common enemy turned lover.
In both dramas, it is the 2nd ML who is the trigger for the first ML to take action and tackle the sister.
Although the outcome is totally different I both dramas. There are many similarities! I would add on a personal note that you get more involve emotionally and psychologically in Dear X!

Both main male characters swooped in on the other male character just for revenge's sake, to finally get caught in their own games!
Although in Revenged Love he thought he was a straight guy and he willingly went for a guy to avenge himself, in My Bias Is Showing, he does it for another guy that he was in love with.
Both story-lines are worth the watch!!