Super Gene Optimization Fluid - Chapter 1: Xia Fei

When Jiang Cheng was told to return to a family that he never knew or had a relationship with, he had never expected to end up meeting a young girl, and eventually, her seemingly roguish brother Gu Fei, as a first encounter in the new city.

A river song, triggered a legend of the rivers and lakes.
Tian Zun’s life motto: “My sword is the truth.”
Shen Lang’s life motto: “To serve people with morality, those who are dissatisfied are dead.”

- Description from uukanshu (translated)

«Grey, elemental affinity, zero» The Elder announced the result loudly.

“Just leave, boy. I have arranged a marriage for you, and she's a stunning beauty. Consider yourself lucky!”With his master fleeing with the money, Lin Chen, filled with sorrow and anger, left the mountain to find his fiancée. However, on the way, he was abducted by a beautiful woman who forced him to pose as her fake boyfriend. The most important thing was, this woman looked exactly like his fiancée.