The Villainous Daughter Fled from the Condemnation Route ~The Scenario Collapsed, But I Don't Care.

The protagonist was a gamer who loved completionist playstyles, but the world he was reincarnated into was a casual novel game. The marquess's daughter Lanamaria, in whose body the protagonist was reincarnated, is a villainess character in the story who becomes so obsessed with her fiancé, the prince, that she commits every possible wrongdoing. She is a typical "serves her right" type villainess who gets publicly denounced and has her engagement broken off by the prince and his stepsister, only to meet a tragic end. While she acts to avoid her miserable future, she finds herself excited about how much she can "complete" this world. ※I'm also posting this on Kakuyomu.