The Other Side of the Underworld

In a car accident, Wang Yi, a pedestrian, was involved in a car accident for no reason and died unexpectedly. His soul left his body and drifted onto a stone bridge in confusion. When he opened his eyes, he found that he had arrived in a strange world, and his soul was merged into a strange body. A green mountain forest with misty clouds, a simple wooden house standing alone on the top of a mountain, a thin young man who was sold to the monks on the mountain to work as a handyman, and his missing soul merged with Wang Yi's soul... Why can the soul travel through time and space? Where is this place? Where should he go for the rest of his life...