C19 Soul Exchange Is Revenge?

Time returned to the day Jiang Sheng fell off the tall building. In a basement of a strange castle.

The path was cold and damp. Occasionally, one could hear a few roars similar to monsters, which made one's hair stand on end.

In a secret room with the door open, a white-haired old man was sitting cross-legged in a magic array, casting some sort of spell.

However, not long after