Traveling to another world, the system said that the outside world is very dangerous, and asked me to cultivate immortality. After practicing to the Mahayana stage, I was not allowed to go out. After thousands of years, I finally cultivated to the Mahayana stage, only to find that this is the world of Naruto. I was asked to fight the final BOSS. After defeating the BOSS, I went to another world to sign in. It was too difficult for me.
