Clockwork Requiem

A mysterious disease infects automatons and turns them against their human masters, heightening political and economic strains.
Hortense (Ten) Monceaux leads an assembly team at one of Gredera's largest automaton factories. She is a refugee, trapped by a debt to Romulus House - a gang of 'old blood' West Bankers who feed and shelter her in return for labour.
Jesse Corvinus is the heir to Romulus House, and an enforcer of his father's interests, tasked with ensuring repayments are being met and rival gangs are kept in check.
When Ten is caught underfoot of a friend's schemes, Jesse is forced to bring her in. But not before they are set upon by a rampaging mech who is bent on bringing down the whole neighbourhood. It destroys the street and sends them both falling into the depths of the city. They have no choice but to stick together to find a way back to the surface. However, what they find beneath the streets of Gredera may well prove the cure for The Red, and may also expose a wider conspiracy that will turn scrutiny to the skies. To Caelum. The city above the city, where the aristocrats look down in disgust.

(Disclaimer: cover created by me using concept art by Nagy Norbert on ArtStation - I own no rights to it.)