Carp? I'm Dragon!

The Story

Jack, a mundane office worker, finds himself reborn as a koi fish after a strange temporal shift. The mermaids mock his new form, but Luna intervenes to protect him. She grants him access to a Devour Evolution System that fuels his rapid growth. Through a series of fortunate encounters and relentless training, Jack transforms from a humble koi into a majestic golden flood dragon. He defeats every challenger who dares to test his strength, eventually earning the respect of the Flood Dragon Queen. However, he soon uncovers her sinister intentions. To stop her, Jack pushes his limits and evolves into a formidable sky dragon. He overcomes the Flood Dragon Queen in a final confrontation. With her defeat, he crosses the Dragon Gate and ascends to the status of a true dragon, completing his extraordinary metamorphosis.