Kishin Houkou Demonbane (TV)

Kuro Daijuuji, a struggling detective in Arkham City, is offered a lucrative job by Ruri Hado of the Hado Financial Group: find a magic book. Initially reluctant, Kuro accepts the offer. During his search, he encounters Al, a beautiful girl who is actually a powerful grimoire. They form a contract, granting Kuro potent magical abilities. Subsequently, Al activates Demonbane, a deus machina belonging to the Hado Financial Group. This activation is in response to the mechanical threats posed by the Black Lodge, a rival organization. The arrival of Demonbane marks the beginning of a war between the Hado Financial Group and the Black Lodge, with Kuro and Al at the forefront.