Find your tribe in a Sea of Creativity
So, Danny and Jazz moved to Gotham for a new start in their life and un-life ( ignore that he and Jazz are rather young to be moving across the country, ignore that his parents died saving them from the GIW ). They've got an "ok" apartment, and a job at this cute little flower shop run by an eccentric "possibly former supervillains" lesbian couple.
He's even making friends with the ghosts. Like Richard and Mary Grayson (trapeze incident) who are teaching him to fight like a human, if Danny didn't know better he'd think they were stalking those vigilantes. or Dr. Hamish (killer clown?) who's helping Jazz with her studies.
Apparently some time before they met Danny they were just shades who couldn't even manifest, weird. There's also the weirdly active shades telling him where all the good spots to watch the city are and how to find the cheapest prices at stores.
Nobody knows what's wrong with this creepy kid. Every time some mugger even looks in the scrawny boy's direction their loved ones show up and yell at them until the kid's down the street.
Batman tried to investigate the potential meta until he saw his parents waving in a nearby window. Danny's neighbor swares his grandma is haunting him and Danny for some reason, and any time the Joker goes within a city block of ivy and Harley's flower shop/home he becomes blind and deaf by the sheer number of his "volunteers" telling him to die.