A college student named Charlotte suddenly reincarnates as Charlotte, the marquis’s daughter and heroine of a manga. In the original story, she meets an angel at a chapel who grants her magic that allows Prince Isaac to hear her true feelings, eventually bringing them together.

But after reincarnating, she oversleeps and misses the angel, only to run into a demon named Maynard instead. Annoyed at being mistaken for an angel, he twists her wish and gives her the ability to hear Prince Isaac’s thoughts. Unfortunately, Isaac is nothing like the kind prince from the story but a cruel and obsessive yandere. As Charlotte tries to avoid him after discovering his true nature, it only sparks his interest even more. When her situation becomes dangerous, the demon Maynard appears again to help, though dealing with him may prove just as troublesome.