The broken engagement went exactly as planned.

The Final Scene of an Otome Game. The prince breaks his engagement with the villainess and ends up with the heroine. But what if the broken engagement was all according to plan? This is a story of a villainess who defied the otome game, a prince, and a knight. ⚠️ Warning! This is boys' love. Seriously, it's boys' love from beginning to end. It's not just a minor element—it's full-on boys' love! Although it features a villainess character, this is not a romance story about the villainess. There may be few "serves you right" elements. Genre I've changed it to romance and fantasy world. Though it is technically a romance, the villainess does not experience romance. The prince is constantly gushing about his love (boys' love).