Straight manga (Korean novel)

I got reincarnated in a tragedy novel. Just before my favourite character turns into the villain! If this goes on like this, my favourite character will turn into the villain and die. I can't just let my favourite character die like that, I'll try my

I Refuse The Duke summary:"I'll accept your one condition." Aidan Dalton, who has hid the fact that she's a girl from the Duke Felix Berkeley. However, Aidan got in an accident, And when she came to, she had become the beautiful aristocrat Gloria! My