I Have Been Collecting Demonic Energy in the Demon Suppression Division for Hundreds of Years.

Zhou Yan travels to a world where demons exist and acquires the art of listening. He can know the past of the dead and the future of the living. With a volume of demon records, he can receive rewards by absorbing the demonic energy. Blood-nourishing pill, Kung Fu Nei Jing, Cleansing Qing Yun Kung, the demonic power of a hundred generations... Relying on the art of listening, he planned the future. With the reward of the Demon Scroll, he practiced steadily and climbed to the top step by step, becoming an immortal among the people of the world.