Kiba

In ancient times, a great battle was waged between a master mage, Enno, and an evil demon goddess, Karuma. Enno didn't have the strength to defeat her alone and was forced to call upon Zenki, a powerful protector demon. After Karuma was defeated, Enno sealed Zenki away in a pillar located inside his temple. 1,200 years after this epic battle, Enno's descendant, Chiaki, unleashes her family's powers to summon Zenki.

In a world where humans and ayakashi–supernatural beings–coexist, being chosen as an ayakashi’s bride is the ultimate honor. Yuzu, an ordinary schoolgirl, has been overlooked her whole life, eclipsed by the shadow of her sister Karin, a chosen bride. Just when Yuzu has had enough, she unexpectedly captures the heart of Reiya, a dashing ogre from a powerful clan who claims Yuzu as his own.

Legendary hitman Juzo Ogami has never failed an assignment. But after a mission, he’s stung by a mysterious wasp and wakes up in the body of a 13-year-old boy! And to make things even weirder, he receives a bizarre new order: infiltrate a middle school. Now the once-feared assassin must balance the chaos of school life with his deadly work, all while searching for a way to regain his adult body!

Ban Mido and Ginji Amano run a freelance business of recovering anything lost or stolen. They call themselves the GetBackers, and they're a super powered duo.