Black Cat Transformation: The Cold Beauty CEO Embraces Me

A Zhe was hit by a car while saving a black cat on a rainy night, and woke up as a palm-sized black cat. He was taken home by Su Wanqing, the sleepless CEO of the Su Corporation, who named him Momo. She thought she had adopted a clever pet, but little did she know this cat could devour abnormal energies lurking in the city's shadows, evolve through nine stages, and briefly take human form. With her uncle seizing power, forced marriage arrangements, and a secret organization hunting mystical cats closing in, he spends his days cuddled in her arms acting spoiled, and at night transforms into a young man named 'A Jiu' to clear all obstacles for her. Every time she's about to recognize him, he conveniently turns back into a cat and falls back into her embrace. — Description from novelcodex.org