In the Tianyuan Continent, a skyy abyss split the world in half. The heavenly domain cultivates the heavenly power, and the abyssal domain cultivates the abyssal power. For thousands of years, water and fire are incompatible. Those who have two powers of the same body are considered taboo and will not be killed without mercy. Lu Xuan, a young man from Wangyuan Town, a son of the bloodline of Tianyu and Abyss, condensed the Tianyin and Abyssal at the same time during the sealing ceremony at the age of fifteen. The ten-thousand-year taboo reappeared, and Xuantian Sect of Tianyu ordered execution on the spot, while Dark Abyss Department of Abyss wanted to capture him alive. The two forces came to the door at the same time. In order to protect her son, her mother Su Yao broke out the cultivation that she had hidden for twelve years, and was seriously injured and on the verge of death. In a desperate situation, the seal in Lu Xuan's body shattered - the power of heaven in his right hand and the power of Yuan in his left hand. The power of the two seals, which no one had controlled at the same time for thousands of years, suddenly awakened at this moment. One palm knocked away the genius of the Heaven Realm, and one strike tore apart the Secret Agent of the Abyss Realm. Covered in blood and his orifices oozing red, he only said one word to the two forces - "Let's go." But this was just the beginning. The price of having two seals in one body is that the meridians are broken every inch, and the body may collapse at any time. The truth behind the disappearance of his father Lu Chen twelve years ago, the ancient secret of the splitting of the Tianyuan world, the conspiracy behind the ten thousand-year conflict between the Heavenly Realm and the Abyssal Realm... All clues point to the depths of the Tianyuan Realm. He must live. Must become stronger. You must walk into the abyss that no one dares to step into - find the answer, find your father, and open the door that no one has opened for thousands of years. Heaven and abyss are not in opposition. One seal breaks through the abyss.
Mission: Use the power of young people to break inherent prejudices and boundaries and prove that opposition is not fate and that integration is the real power. The sky and the abyss are like this, and so are people.