Well, perhaps 'grime city stories' include stories about the unique cultures that thrive in such a place. It might have stories about the local music scene that has emerged from the grime and grittiness, with artists using their experiences in the city as inspiration. There could also be stories about the dilapidated buildings and how they have become part of the city's character, with each one having a history of its own.
There could be stories about the underbelly of the city, like the struggles of the poor and marginalized. Maybe tales of street gangs and their rivalries, or the stories of individuals trying to make a better life in a tough, dirty city.
In 'grime city stories', we might find stories about the people who work in the less glamorous jobs in the city. For example, the garbage collectors who see the worst parts of the city every day but still have their own stories of friendship and community. There could be stories about the small business owners in the run - down areas, trying to keep their shops alive despite the difficult conditions. The stories could also touch on the environmental issues in the city, like pollution and how it affects the lives of the residents.