This System of Cultivating Immortals Has Been Delayed for Six Hundred Years

Li Qingxuan's Immortal Cultivation Diary: On the first day, I survived the catastrophe, successfully traveled through time, got close to the system, and started practicing. I will definitely become an immortal in this life. The next day, why is it so difficult to cultivate immortality in Gouri? You are making things difficult for me, Li Qingxuan. On the third day, the deadline is up, and he lies down to die. On the fourth day, I was surprised that the system didn't punish me. Day five, system, are you still there? On the sixth day, he sat up in shock while dying of illness. It was not too late to continue cultivating immortality. … On the 30th day, the task has been completed long ago. System, you give me a reward, system, you let me out! System:… One hundred years, two hundred years, three hundred years... Six hundred years passed. One day, the system said: Congratulations on completing your first mission... Li Qingxuan: (╯°Д°)╯┻━┻, do you know how I lived these six hundred years!!! (This book is extremely relaxing and joyful)