Looking for a webtoon/manhwa about a woman with scars on her body/face who was released fr...

Looking for a webtoon/manhwa about a woman with scars on her body/face who was released from prison and joined some sort of hit man group to find out who had murdered her husband. The boss is an young androgynous looking character with some sort of box covering their face and her coworkers are a light blond (I think) who makes “art” out of corpses and a dark haired boy who has some sort of extreme trauma (that sometimes makes him kill, I think).