Silverbutterfly

Anyone knows the title for this yaoi Korean manhwa where the mc have some.kind of shaman bloodline and in order to activate his power he needs to find someone with good fortune/compatible aura and need to feel sexually pleasured. He jerked off the top in bathroom to get good luck and tell the top to be careful around knives. Turns out the ml is actually some kind of mafia,buried him in the mountain before the mc told him that he's from a family of shaman and his prediction about the knife was right so ml spare him so he could help with a murder case??T^T

Thank you in advance!!

Hello! Do anyone know a Chinese bl manhua where I think mc transmigratted to another world and he needs to rise the ML favorablity?;-; it's a historical manhua :)) thank you in advanve!!