Quan Xin Asked: Fate Dictates

Zhang Er was saved by an expert when he was a child. According to the instruction of the expert, he drank mountain spring water from an early age until he was eighteen years old. Later, due to fate, they met the expert Ma Jiu in the Immortal Continent, and taught him a Immortal Sect technique, hoping for his own reincarnation. At this point, the protagonist officially embarks on the road to immortality.