To her classmates, Mia is just another "alone forever" girl who sometimes thinks too late.
No one knows that Mia has a big secret... the secret of being a "Raksaka"! Like the rest of her family, Mia is a hunter of Ratri, creatures of darkness who want to possess human bodies.

As in her nightlife as a young Raksaka, Mia is also passionate about helping others, including helping Ony. Ony is a transfer student in her class who rarely attends class, has no friends, is mysterious and rude!
Despite being forbidden by her best friend, Mia is determined to make Ony more open to others.

There's something about Ony that intrigues Mia. Could Ony be connected to Mia's other life as a Raksaka?

(Source: MangaUpdates)