It drops you at street level and makes you crane your neck at the giant robot like everybody else in town. Lily Bridge is the whole trick: a rookie reporter chasing a scoop through Arkham City, where the eldritch weirdness is so routine that only Demonbane itself still counts as news. That one scrap of Hadou Combine machinery is the thread, and pulling it drags her out of journalism and into Lovecraft's filing cabinet, where the grimoires are alive and the mecha runs on them. Twenty-odd minutes is a criminally short leash for a Nitroplus cosmology this dense, and yes, it sprints. But Kurou and Al Azif summoning Demonbane over a city named Arkham, seen through the eyes of somebody who just wanted a byline, hits harder than any straight adaptation would have. Watch it for the reporter, stay for the tentacles.
Journalist Lily Bridge chases stories in Arkham City, a metropolis where the bizarre has become routine. When she discovers a mechanical fragment connected to the shadowy Hadou Combine, her instinct for a real story kicks into overdrive. Her investigation pulls her into the orbit of Demonbane, an enigmatic mecha that seems to operate by its own rules, answering to no single authority. As Lily digs deeper, she uncovers layers of conspiracy that extend far beyond corporate corruption. Powerful entities with competing agendas move pieces across the city like a chess game, and she's stumbled onto something that makes her a target. The tone shifts between noir-tinged mystery and comedic moments as Lily realizes her reporterly ambitions have made her part of something much larger and far more dangerous than she bargained for. This OVA works best for viewers who enjoy character-driven stories where ordinary people collide with extraordinary circumstances, and who appreciate science fiction that doesn't take itself completely seriously while still maintaining real stakes.