I Will Become the Ex-Wife of the Beast

Synopsis

Waking up inside an adult novel, Bella finds herself cast as the younger sister of a bride who fled a feared, masked grand duke, a setup that leads straight to ruin. She offers herself as his wife in her sister's place, planning only to endure a short marriage, divorce him, and live comfortably on a generous settlement. The duke, however, has no intention of letting her go.