The Unfilial Heir Who Tries to Kill Me Tempts Me

One day, Charlotte wakes up to find herself inside the novel she wrote herself. To make matters worse, she has already brainwashed the male protagonist.
Desperate to avoid her predetermined death and find a way back to her original world, Charlotte willingly requests exile to the Grand Duchy of Lucifenia, a land known as the grave of the dark mage.
“Hello, witch. Welcome to the grave.”
There, she encounters Kairos Lucifenia, the Grand Duke who despises dark mages and is notorious as the greatest unfilial son in the novel. But what awaits Charlotte after meeting him?