The Prince is a Big Tiger

The Prince is a Big Tiger is a manga series published by Ake Culture. It's a historical-romance 105 chapters manga.

Plot
Like everyone else, Yun Caiwei found herself transmigrating into the past. Unfortunately for her, she was thrown into the shoes of a frail, delicate girl. Worse still, her male lead is a huge tiger! In his human form, the tiger flirts with her, pampers her, and possessively dominates her. In his tiger form, though, he becomes… an adorable kitty?