In My Rebirth, I Will Be the Little Brother of a Female Ghost

How could Feng Yi have imagined that he could be reborn after he died in a car accident at the wedding? The most perverted thing is the system after rebirth. What the hell is this? The cold ghost sister signed a life-and-death contract with Feng Yi and led Feng Yi on a different path of fighting ghosts to see if Feng Yi could make a comeback in the end. I want to be the king of this ghost realm. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.