Fic search Mystrade with kids

[lightenmd]

So the fic that I'm searching for I read on AO3. It's an established Mystrade and in the first chapter Greg is home when there's a knock at the door and there are these two kids,a boy and a girl teenagers, and they are there to return Greg's suitcase. Mycroft gets home and I think Greg invites them to have dinner and they end up staying the night. Greg gets attached and so does Mycroft, they sort of keep an eye on the kids. The kids father is a drug leader who hits them and they run away. Greg and Mycroft send Sherlock and John to find them. I remember that they go to the kids school and Mycroff says that the boy had some disorder that Sherlock had. I have research on AO3 for 3 days and haven't been able to find anything, I'm hoping that someone in this community recongizes the fic.

Thank you!!