Break into the Villain's House as the Sweetheart

Nuo Nuo is a silly little one, but luckily binds with a system and becomes the baby in a villainous big shot's family. His father is the ultimate boss set to destroy the world, his eldest brother invented the zombie virus as the father of zombies, his second brother is a born bad seed, nurturing countless thorny flowers with blood, and his third brother controls an entire city of terrifying dolls. In the original plot, Nuo Nuo would grow into the most ruthless mermaid king. Baring his tiny rice-like teeth and wagging his little blue tail, Nuo Nuo lets out an adorable but fierce "awu" sound. *** One day, Fei Zhiyan suddenly finds Nuo Nuo appearing in his bedroom and initially thinks the little one is just trouble. But Nuo Nuo is simply too adorable—his chubby little cheeks and lively black grape-like eyes melt hearts whenever he looks at you. The family of villains, initially cold and indifferent, soon become utterly smitten, competing daily to cuddle with the baby. The impending destruction of the world is completely forgotten. The villains declare: Destroy the world? How could that compare to playing with our baby! *** As a villainous heir upholding his family’s legacy, Nuo Nuo takes his mission seriously: bully the protagonist at all costs! Stealing the protagonist's milk, gobbling up his candies, and snatching his achievement flowers! The villain system proudly claims Nuo Nuo is the best little villain it’s ever trained! Meanwhile, the bullied protagonist thinks: Nuo Nuo is so cute~