The Last Immortal in the Martial Arts World

My name is Li Buxiu, and I am a casual cultivator. One hundred thousand years ago, I passed through the tribulation for the first time. Ninety thousand years ago, I passed through the tribulation for the second time. Eighty thousand years ago, I passed through the tribulation for the third time. … Ten thousand years ago, I passed through the tribulation for the ninth time. One day, I woke up and found that the world had changed. There were no traces of immortals, only monks. As a result, I was regarded as the last immortal in the post-immortal era. I declare that I am not a cheat, and any cheat in front of me is scum.