I Possessed the Most Terrifying Stepmother in History?

One day, Chitose wakes up to find herself possessed into the body of Claire, the villainess known as “the most terrifying wicked woman in history” from a novel. Claire is forced into marriage with the “Grim Reaper of the Battlefield,” Duke Vermilion—and is destined to be executed in the end. Confused and panicking in this desperate situation, Chitose suddenly comes face to face with three adorable children. She loves kids and had dreamed of becoming a childcare worker, so her heart leaps at their presence—yet the children are clearly terrified of Claire.