Hei Kamugaseki is a major character in the fanfiction series, "DxD: FINAL." He is a prominent member of the Counter-Demon Force, and the leader of the S-0 Squad. He is highly respected by his colleagues, but is generally regarded as a terrifying individual when angered or crossed with, and is strict in regards to training regiments. Issei Hyoudou is looks up to him, as he was the one who helped him enter the Counter-Demon Force.