Silhouettes of Mischief: Phantom Thief vs. Detective

This is a Saiouma fanfiction in the Phantom Thief AU.
This is my first story so it's gonna probably be weird.
The title may or may not make sense at some point, I'm really bad with titles.
The art Isn't mine, I found it on google you can find it if you search, "saiouma fanart phantom thief"
I'll update when I have new chapters and motivation