The Demon Suppressor: I Slayed the Dragon in the Troubled Times of Demons and Demons

Traveling back to a troubled time where demons are rampant, the protagonist is betrayed by a traitor and is in danger, about to become the pig demon's ration. Awakening the Krypton Life System at the critical moment of life and death, you can deduce various martial arts by consuming your lifespan. Since then, he has rapidly improved his cultivation and accumulated profound skills. Trading his lifespan for strength, he fought bravely along the way, determined to rid the world of demons, protect the common people, and return peace to the world.