Title: The 101st Heroine
A young woman is reincarnated as the only daughter of a humble family in the countryside of a fantasy novel. Under her new identity of Evie Collins, Evie is determined to live a normal, productive life with her soon-to-be-husband. Unfortunately. Evie's world is rocked when her fiance returns home from the capital with a new woman on his arm.
In a fit of rage, Evie signs up to join the kingdom's latest competition: to marry the crown prince. She doesn't sign up thinking she will actually get chosen. 100 noblewomen are selected, with the final 101st contestant randomly selected from all the commoner submissions. Surprise, surprise, though, Evie is selected as the 101st contestant. Now, country Evie will have to face off against 100 noblewomen, all while her efforts are being aired to the entire kingdom.