Murdered and pushed off a cliff by his adoptive brother, Gu Chuan, the group's crown prince reborn as an alligator turtle, relies on the swallowing and evolution system to crazily upgrade at the bottom of the lake. While dodging pursuit and swallowing a critical piece of evidence via USB flash drive, he transforms into a giant beast dropping from the sky at the critical moment of life and death when his mother is being tricked. Relying on the infinite swallowing and evolution system, starting from swallowing aquatic plants, fish, and shrimp, going through successive transformations into alligator turtle, mysterious snake, and soaring dragon, he finally transforms from dragon to human. All growth and evolution take protecting his mother and the safety of the catering group as the core goal, with the seven-day heir battle as the ultimate battlefield.