When the Ancestor Cultivated Immortality in the City

The great ancestor of another world accidentally traveled to a college student named Chen Bin from Blue Star. With the knowledge and memory he brought along with him, he gradually became a peerless expert that all the big guys on Blue Star wanted to get to know. "Senior Chen, can you allow our company to represent your newly developed miracle medicine?" "Senior Chen, can you help me change my life?" "Senior Chen, it has not rained in that place for several years. Can it rain again?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.