Of Cuts Deep and Shallow (слэш)

Follows the comic ending of "Under the Red Hood" where Batman sliced Jason’s neck to stop him from killing Joker. With such injuries, Jason barely escapes with the help of his one-time mentor, Slade...who is surprisingly upset on his behalf.
“You don’t owe Batman anything. Not your death, and not your life…”
Jason finds Slade’s reaction discerning and...intoxicating.