From the Start, I Gave Myself Supreme Rewards

Wang Yang transmigrates to a fantasy world and awakens a System called 《Self-Sufficiency》. This System actually lets him issue tasks to himself, then gives him the rewards he wants. "Ding! You completed the task you set yourself: draw your sword once. Reward: Sword Art of Heaven's Destruction, mastered." "Ding! You completed the task you set yourself: laugh once. Reward: True Dragon physique!" "Ding! You completed the task you set yourself: take a nap. Reward: Elixir of Immortality." Wang Yang: "In this world, it's not a question of what I want to obtain. There's simply nothing I can't get."