Father, I Don’t Want to Get Married!

Story:

The main character is the villainess from the novel she has read into which she finds herself. She was doomed to die, but no! – With memories from my past life, I will avoid my death flag! – I will not marry a man who has no honor, family, property and even power! When I announced my desire to live a glorious and glamorous life, my dad decided to make the crown prince my fiance ?! Is he out of his mind ?! I'll just take the engagement agreement as a last resort. – Why do you avoid being engaged to the crown prince? – Because I'm afraid! He immediately kills people who do not obey him! A few days later, the Crown Prince sent me a letter: "Don't worry, I won't kill you." Oh no… Have I already done something that could get me killed?