MC goes into world as a man trying to become the discipline to our ML He was saved as a child by him so want to pay him back The story starts at a competition and MC is caught staring at ML (which is courageous) ML says something like if you get first place you can be part of my body guards MC is merciless in the competition and ML finds it amusing how contradictory he looks from killing someone and then putting on a smile for him ML already likes someone else one of his discipline Who is very cold to him I remember a scene where it was that person's birthday and was handed some sort of great crystal that helps cultivation but because they accidentally touch his drops and breaks it. MC is has a high cultivation and can make very great weapons ML's sweetheart was suppose to betray him and take a purple something to his boyfriend but where the cavething doesn't have it but paintings of MC
Is this the one where the ML is the leader of a devil sect who can’t bring himself to eat? His disciple is a self righteous hypocrite who acts like the ML is disgusting for liking a man, but then he steals the flower the ML raised for hundreds of years to give to his male lover? MC being around helps the ML eat his food. Tsundere ML starts to stalk the MC after rejecting him. MC has a super powerful soul that lets him tell that the ML is spying on him every time he takes a bath. I’ll try to remember the title. Edit: Glad it was found ! Edit2: Found my Review of the Novel