Help me find the name of a yaoi manhwa?

The uke was a black haired shaman, the seme was a white/blonde haired yakuza leader. The fake shaman tried to scam the yakuza leader that they would have to have sex to give him good luck.
They were linked in their past life too. Uke was a kid shaman and seme was a mountain spirit.
The seme also had a brother who was trying to kill the seme and take the uke (⊙…⊙ )