I recommend two Doujinshi novels to you,"Douluo: Long Live Spirit Hall" and "Douluo's Self-disciplined Spirit Beast." These two novels combined the Heavenly Jewel Transformation with other worlds, filled with wonderful adventures and thrilling battles. Among them,"Douluo: Long Live Spirit Hall" told the story of a youth with a smart brain chip, leading his spirit split twin spirit to train in a different world, while "Douluo's Self-disciplined Spirit Beast" told the story of a man who became a master of spirit beast breeding in a different world. I hope you like my recommendation.