Xiu Xian: I Bound Xiao Ai

"Brother, you are so stupid! I will teach you how to practice!" "Brother, is that beautiful sister your master? The way she looks at you is not right..." After Chu Han bound Zhinao Xiaoai, he discovered that Zhinao was so useful, and he embarked on the path of cultivating immortality. Who is the future between traditional cultivation of immortality and mechanical ascension?