There Was a Cute Girl in the Hero's Party, So I Tried Confessing to Her

Once human, Yoki has been reincarnated as a demon and now holds a middling post in the Demon King's service, tasked with bringing down the hero party. When he finally faces them, he thinks she is perfect. He falls in love at first sight with Cecilia, the priest of the hero party. Her stern gaze, every gesture, and everything about her feels angelic. With this realization, Yoki resolves to confess his feelings to her.