help please lmao

hey so i just remembered a weird yaoi manga story thing i read a while back and i wanna know what it was. (i think) it was about a guy who owned a shop inside some sort of prison or prison complex and he was really weird. he keeps a journal of every interaction he has with this one guy (some rich dude…maybe the warden?) and he’s super obsessive and gross about it. i remember one scene where he was jerking off to the guys jacket and the way it’s written gives you the heebee jeebies. kinda the vibe of killing stalking but less kill more just kinda weird. the guy who owns the store is the uke.