In her previous life, Lin Che was an overworked office worker who died suddenly from working overtime. Reborn as a weak stray kitten on the streets, she endures life-and-death trials in human communities, including malicious feeding, bullying, and capture attempts. Then she awakens a devouring evolution system and grows stronger by consuming everything in her path. Escaping human control, she ventures deep into the mountains and forests, devours her way through successive evolutionary stages, sweeps aside the ferocious beasts of the wilderness, and ultimately ascends to become the supreme ruler of the forest, before whom all beasts submit.