Ha, I saw other people making celebration threads and thought it was ok. Sorry about that! I just recently got 25 subs.
Title: How To Kill A King
Summary: Min-jun has trained and suffered for his role as the King's consort. Fueled by fury and vengeance, no obstacle can divert him from his chosen path: Becoming the instigator of the King's death. Nothing and especially not a peculiarly charming King bent on raising his Kingdom from the ashes.
Anything else: This is a BL novel centered around two characters who have been forced into opposition, but they both learn and grow thanks to their clashing world views. Very character-focused, but there's a plot holding it all together. It also has some mystery aspects running throughout bc the MC is an ex-detective.