High Martial: My Health Bar Has No Limit

At eighteen, when his powers awakened, Lin Yan gained an F-rank ability that could only amplify permanent life growth. Everyone thought it was useless: no offense, no defense, no healing, just an empty health bar that could never be filled. It wasn't until he learned a forbidden technique that used his lifespan as its price that he realized every powerful ability in the world was merely a different way of burning through one's life.