Why Am I Suddenly Invincible After 30 Years of Signing in the Underground Cave?

When Su Yu woke up, he found himself in a cave maze. I thought I was going to survive in humble circumstances, but I turned on the sign-in system. When I signed in at the beginning, I could see the prompts for the next cave. Sign in at the second cave and obtain the Nine Transformations Golden Body Technique! Sign in at the 1,000th crypt and obtain the Heaven-Slaying Sword Technique! Sign in at the 10,000th cave and receive the Tathagata Palm! The spiritual root of flat peach, the golden body of Dharma, the nine-color sacred deer, the divine power of Tiangang, the elixir of immortality... Until thirty years later, the underground caves counterattacked the ground, and the world was in chaos with demons, ghosts and ghosts running rampant, and life was like a piece of grass. Su Yu returns to the ground, turns the world around, nine heavens and ten earths, at the end of the immortal road, I am the peak!