Qin Yun drowned while taking a walk by the river, but unexpectedly, he was reborn in Dongting Lake as a little red carp and activated the Devouring Evolution System.

"Congratulations, host, on evolving into an F-rank mutated red carp: You have gained [Invincible Dragon Scales], [Dragon's Might], [Diamond Fins], and [Water Control Talent]."

"Congratulations, host, on evolving into an E-rank Dragon Carp: You have obtained [Lightning Flash] and [Fountain of Life]..."

"Congratulations, host, on evolving into..."

...

Just when Qin Yun was invincible, one day, on the East Sea, a nine-tailed fox suddenly claimed to be his future wife and the future emperor of the demon race, and said she would take him flying.