Reikoku-Ou wa Hatsukoi ni Kuruu冷酷王は初恋に狂う

Princess Sophia, born in exchange for her mother's life, has lived a life of oppression, having received an oracle of being Kingslayer that will one day threaten the life of her father, the king. On the day the new king of a neighboring kingdom comes to greet her, she hears of her stepmother's plans to assassinate her...