Crossing the Farm Gate: Rebirth and Exchange of Love Rivals

He traveled through the farm gate to get rich, and helped the scumbag to advance and conquer the country. However, he was killed by a sword and was reborn in the body of his love rival in the previous life. Only then did he realize that the person who killed him was the person he loved most. The former love rival was reborn in him, and he became a close friend. They started a business and became rich together, cultivated their own power, and jointly punished the scumbag. When they met a sinister prince, they went from being suspicious and suspicious to supporting each other. They worked together to overcome the difficulties, assisted the new emperor in ascending the throne, and retired to the mountains and rivers.