Simulation from Martial Artist to Invincible

Life simulation fantasy without female protagonist Gu An traveled through time and entered a world of martial arts. An apprentice in a medicine shop, his father went missing due to debt, and the clan was eyeing his three old houses - the start was as bad as it could be. The only decent thing is a panel: One simulation per day. There are nine levels of simulation, with the ninth level being the lowest and the first level being the highest - now he can only afford the lowest level. Life in the simulation is deduced according to the day, no matter how hard it is, it ends when you die. At the end, you can pick things to bring back to reality: talent, realm, skills, swords, and a life that no one else can buy in a lifetime. When others practice martial arts, ten years of practice counts as ten years. Gu An simulated ten lives, practicing all the hardships in one go, and then picked the fattest ones to inherit. So he worked his way up - with a body of mortal bones, from tempering the body to breaking the void, from human martial arts to the spiritual world, and finally stood in front of the law. But the further he went, the clearer he became about three things: There is a curtain in the sky of this world. The world of low martial arts is just a chessboard for those outside the curtain. His father's disappearance was related to Mu. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.