A reclusive master came down from the mountain with the intention of stirring up trouble in the world, but instead he was forced to become a scorned son-in-law for three years. He was scolded by his father-in-law, despised by his mother-in-law, and looked down upon by his sister-in-law.
Until he accidentally activated the [Soul Swap Simulator] - when he swapped bodies with others, he could perfectly inherit everything about the other person! Exchanged with the old man of the family, he inherited centuries-old skills and supreme authority; exchanged with the richest man, he gained wealth that rivaled the country; exchanged with the grandmaster, he transformed into the ceiling of martial arts.
As a result, the father-in-law's family was horrified to discover that the submissive and good-for-nothing son-in-law was actually the emperor behind the scenes who made the whole city tremble!
