Waking up, Lu Chen unexpectedly finds himself reborn as an electric eel inside a fish tank, immediately pursued by a giantarapaima at the start, while his owner constantly loves to use him for pet live streaming. Amidst desperate straits, he accidentally awakens the evolution system; defeating powerful enemies allows him to unlock new abilities, transforming all the way from a weak electric eel into an electric crocodile, lightning flood dragon, and lightning dragon. Spiritual energy recovery descends, ten thousand beasts stir, and world order experiences violent turmoil—while that imprisoned eel once trapped in a square glass tank will ultimately break the shackles and ascend to the peak.