Why Would a Villainess Have Virtue?

Why Would a Villainess Have Virtue? is a Manga/Manhwa/Manhua in (English/Raw) language, Manhwa series is written by Updating This Comic is About
Charlotte is a love child who lived in the countryside.
For years, she dedicated her affection to her weak childhood friend, a powerless prince.
She was the person who worked on tirelessly to eliminate his enemies.
And yet, Albert, who was finally crowned king, quietly sentenced:
“Immobilize her and lock her in the prison. Exterminate her whole family to serve as discipline.”