Satou Atsuki

By using the Dark Gate, humans can entrust their hopes and needs to the darkness. The darkness they call upon is a great and evil power, known as "Demon." With the help of his partner Miroku, the Demon Slayer Kisaki Senju will slaughter every last "Demon" that is called into existence.

Once Demons and Humans were at war, and special warriors were needed to defend humans. Now a peace treaty exists between demons and humans. To uphold it human warriors now protect demons from other predatory demons. The Yosogi family is given this thankless task–and it's heir is young Akira, who can't even stand up against his older sister. But only Akira can sense the presence of demons, so he must become the next Demon Defender. But their grandfather has brought in a shy girl named Matsuri–and Akira is warned in a dream he must protect her at all costs!

The setting is a rural city in which kidnapping and series of murders are happening simultaneously. Eight years ago, a boy and a girl were kidnapped and suffered through the hands of their perpetrator. The victims, the compulsive liar "Mii-kun" (the narrator), and "Maa-chan" (Misono Mayu) reunite and start living together, despite the fact that the recently reported missing children were within Mayu's apartment… adapted from the novel series of the same name