Hakoiri Koujou wa Shikou no Koi wo Onozomi desu!: Risou no Tonogata wo Sagasu Tabi ni Demasu. Tadashi, Utsukushisha Igai Mitomemasen!?

Charlotte, the princess of Valose, is an eccentric person with a penchant for beautiful people, due to a childhood misconception that "love = beauty = happiness." She has repeatedly turned down marriage proposals, saying she can't compromise, but her fiancé tells her she'll never find love if she continues like this... She secretly travels to a neighboring country to scout out her soulmate! A free-spirited princess longing for love sets out on a journey in search of it! (Source: Kadokawa, translated)