Could it be Long Time Red Mall??
no its not,i remember alot of things about it since i have a whole paragraph about what this manhwa was a about too,but it probably contains spoilers
Sorry I couldn't help, then let's wait for someone else who has read it, I think your previous description was good enough for someone that has done so. ^.^
its fine,i already found it thanks tho
it is this one
im looking for thing manhwa i read a while ago it was about a dude who work at a adult shop and like they were this "VIP" member who is actually the boss and try toys on him
EDIT:I found it,it was pleasure principle