Let me help you recommend some ancient romance novels with protagonists pretending to be pigs to eat tigers! "The Snake King Choosing a Concubine" and "Happy Fated Love" both had plots where the protagonist played the pig to eat the tiger! Among them," The Snake King Choosing a Concubine " was a fantasy novel, while " A Fated Love " was a classical fictional novel. Other than that, there was also " The Owl Concubine " that had a similar plot. I hope my recommendation can meet your needs. If you like it, remember to look for me.