High school student Mirai finds that her schoolmate Akihito is an immortal being and half a spirit. When Akihito learns that Mirai is a spirit world warrior their lives become intertwined.

The dark fantasy follows a high school sophomore named Akihito Kanbara. Although the boy appears human, he is half Youmu and invulnerable to wounds because he can heal quickly. One day, Akihito meets freshman Mirai Kuriyama when it seems she is about to jump from the school rooftop. Mirai is isolated because of her ability to manipulate blood, which is considered heresy among members of the spirit world. Disturbing events begin to unfold after Akihito saves Mirai.—Anonymous

Fates intersect as this dark fantasy explores connections between two high-schoolers of opposing ancestries that have granted each incredible abilities and a painful past. Forced to interact and finding a lot more in common than they assumed, the two must challenge a threat more powerful than either of them.—Teurin