Gou Fights for His Girlfriend in the Mortal World

My name is Li Jianguo, and I fell into the world of cultivation because I was looking for my roommate Xu Yang. Who would have thought that the old bachelor would meet Bai Yueguang. Just when I thought I was about to get married in this other world, she died unexpectedly... They said the road to immortality is long and advised me to save my condolences... But I firmly believe that everything has its reason... To save people, we must pay attention to science...