Kane to Otome to Koi to Junjou

A young woman is transported to a fantasy world where she meets a knight who is bound by strict rules and must protect her. She is told she is destined to become queen, though she has no memory of her past. As they travel together, they encounter various challenges and other characters, including a prince. The knight struggles with his duty and growing feelings for her, while she tries to understand her role in this new world.