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The minor character is trying to survive in the big city, and does not want to encounter his wife's cheating boss. Out of grief and anger, he is inexplicably reborn and gets seven miraculous pills. After resurrection, he was in a desperate situation again. In despair, he swallowed the regret medicine and returned to the past. Once again, what choice does a little person have to make? He often gets help from noble people, but there are also bad people blocking his way. Every time he is at the end of his rope, there is still a medicine for regret. Life is really refreshing. But is this regret medicine really a panacea? What conspiracy is hidden behind it will be revealed one by one with the ups and downs of the little man in the city.