FL was isekai into another world or is it the past? The ML was a playboy prince who never knew genuine love until he met our FL as she not only conquered his heart but the hearts of many others who support her as a great leader who overcomes hardships and a wicked enemy.
This is one of my favorite isekai. The romance is beautifully innocent, the characters are cute, the story is wonderfully made. FL is isekai to another world where she was summoned and in this world she meets our handsome ML whose cursed or is it a blessing that part of their connection is the ability to find one another no matter where they are.
Maou Gakuin no Futekigousha