Himegimi no Seizon Senryaku: Taikoku no Ikemen Ouji ga Damashitakuse ni Ai wo Kokuhaku shitekimasu

Elise, a princess of a small kingdom, Loubeshran, was known all over the continent for her cleverness and beauty. But she had a malicious tongue. Her father, the king, said to her countless times-"Oh Elise, no one is asking for your hand in marriage..." She didn't care what her father says. She just cares for peace and prosperity of her kingdom. Then one day, Klaus, a prince of a large empire, comes to see her. "I love you from the bottom of my heart, princess...." The prince says. This is a twisted love story about a princess with a twisted tongue and a wicked(?) prince! (Source: MangaPlaza)