Sukekiyo Inugami is a central character in the classic Japanese mystery novel 'Inugamike no Ichizoku,' written by Seishi Yokomizo. He is a member of the affluent Inugami family and becomes embroiled in a complex web of inheritances and murder following the death of the family patriarch, Sahei Inugami. Sukekiyo returns home after serving in the military, wearing a mask due to injuries sustained during the war. His mysterious presence and concealed identity add tension to the unraveling mystery as detective Kosuke Kindaichi investigates the series of murders targeting the Inugami family.