hole-in-the-man

Hole-In-The-Man is an Abnormality in Limbus Company, one of the many Abnormalities encountered only in the Mirror Dungeon

Its appearance is that of a elongated Black-and-White figure made of Smoke, with no face (Potentially being a hole), Wearing a Black trench coat and wielding a handgun
(Do note that this abnormalities name is not entirely confirmed and is instead an Unofficial Translation from its file's from Korean, so is subject to change)

A concept art of an E.G.O. design for Meursault of this abnormality was posted officially by Project Moon, leading to the (common) association of this Abnormality with the Sinner

Its (potential) source of inspiration is the play No Exit by Jean-Paul Saurte