beta
I dont think Jae Shin(seme) that bad, yes at early chapter there is no consent from the crown prince Nok(uke) but well, Jae Shin is half demon and live at netherworld so his moral will not same as human.
Despite that, he cut (or shapeshift i dont know) his right hand nail short while his left nail still long like a demon is one of the proof he care for the crown prince