Kishin Houkou Demonbane

Kuro Daijuuji is a struggling detective residing in Arkham City. One day, Ruri Hado from the Hado Financial Group approached him with a request to find a magic book. Initially reluctant, Kuro was swayed by Ruri's offer of a substantial reward upon completion. As Kuro pursued the book, he unexpectedly encountered Al, a beautiful girl who is actually a powerful grimoire. They formed a contract, granting Kuro access to potent magic. Soon after, Al activated Demonbane, a deus ex machina owned by the Hado Financial Group, to fight off the mechanical threat from the Black Lodge. This marked the beginning of the war between the Hado Financial Group and the Black Lodge. (Source: Wikipedia) Related Entries Adaptation (TV): Kishin Houkou Demonbane (TV) Alternative Version: - Zanmataisei Demonbane (Light Novel)