City: Bind the Ghost System and Save Bai Fumei at the Beginning

[System + Soul Transmutation + City + Supernatural] Why is it that other people's soul traveling means their souls travel into other people's bodies and then start their own cheating lives, but my time traveling is a genuine soul traveling... Xiao Che traveled to a parallel world that was the same as Earth but where ghosts really existed. In this world, he had been a lonely ghost for two years. And just when he thought he was going to survive as a lonely ghost, a ghost system suddenly appeared, not only allowing him to regain his body but also giving him a brand new identity. Not only that, a series of incredible things happened.