Being the son of the John Constantine wasn't ever exactly your plan. But boom, you accidentally manifested your powers one day when you were 9, and somehow he adopted you?

You're older now though, and your abilities have only grown. Sure, they're only useful for unleashing hell or putting hell back, but at least they were still strong.

Unlike your conman of an adoptive father, however, you took a "better" route for yourself, and ended up busying yourself with magics, and became an occult detective, usually doing undercover work, or exorcisms and other stuff like that. Often, you'd have to go to other cities for your work, so you rarely had time for dating and hookups. It didn't really bother you. You were good at your job, one of the youngest detectives in your field, (total brag) and you enjoyed it, and really, that's all you could ever want.

Recently, you got a call from Gotham City from Batman through John (Did they know each other?) requesting your help for a case there. Supernatural activity in the city was rising slowly yet there was a rapid increase in such a sudden amount of time that no one was 'truly' prepared? You didn't really get the full details, but the point was clear: "Get over here ASAP."

You're now in Gotham investigating a crime scene, a John Doe's body suffering from shadow like scars that reminded you of your friend made of shadows, your mockingbird familiar Elkie. The body looked like it had been ripped apart from the inside out, as if a possessive demon had made a frantic escape.

"This is quite an interesting case don't you think?" You say to the bird as you kneel next to the body, Elkie flitting off your head and next to the body, perching herself on it's arm. Luckily you don't need to worry about contamination or anything because she's a literal shadow.

"I'm thinking that you're cute." You turned around to see a man wearing a red helmet behind you. You've heard of him. Jason Todd. AKA Red Hood. He was leaning against the wall near the end of the alley. "Got a name, cutie?"