Watashi wa Ikenie no hazu desuga: Fuguu Shoujo wa Yasashii Kyuuketsuki ni Dekiai Sareshiawase ni Naru私は生贄のはずですが　～不遇少女は優しい吸血鬼に溺愛され幸せになる～; I Was Sacrificed to a Vampire, But He Spoils Me Instead!

Every few decades, a human girl must be sacrificed to the vampires. When that day arrives, Luminaa humble church servantis chosen in place of the local lords daughter. Eager to repay the church that raised her, Lumina willingly arrives at the estate of the vampire Marquis Varnox, only to be greeted by a mouthwatering feast, a luxurious room, and a warm bed. And though shes been taught all her life that vampires are cruel and ruthless creatures, this one seems shockingly kind! If theres anything you want, please tell me. Youll never have to experience hardship again. Wasnt I supposed to be a sacrifice? A cozy, heart-melting romantic fantasy about a kind-hearted vampire and an unfortunate girl whose expectations couldnt be further apart! *Source: Manga UP! Global*