[Devil Jin (Azazel Kazama Sakatano) +GladiatoriiGalactoseBestiarusz+]

Name: Devil Jin Azazel
Earth World Aliases: Jin Azazel Kazama Sakatano / Jin Kazama
Devil Azazel is the son of demon Azazel
Age: Infinite
Height & Weight in Demon Form: Morphable
Demon Personality: Warmonger and possessor.
“Devil is a power-hungry, merciless entity who is motivated by power above all else, and enjoys causing pain to other people, suggesting a sadistic nature as well. He displays no remorse for the damage that he causes to others in his quest for absolute power and control over the world. He is also extremely arrogant, as he believes that his power has no match. He appears to be very cunning and is ruthless in battle. He also very manipulative, such as attempting to lure others who are cursed by an evil entity like Jin to be succumbed by its power through merciless fear and pain, in attempt to gain theirs as his own.” (Tekken.wikia)
Story as per Tekken:
He morphed with human martial arts fighters Kazuya Mishima and later with Kazuya’s son, Jin Kazama
“He is the cursed soul of Kazuya Mishima and later Jin Kazama. Originally, a malevolent entity with the intent of possessing either Kazuya or Jin, one half has merged with Kazuya.
Kazuya Mishima – Possessed Kazuya in exchange for saving his life which resulted in the large scar on his chest. At first, Devil, Angel and Kazuya were seperate entities that could each morph Kazuya or take their own form until Devil split to take over Jin. In the end of Tekken 4, they get rid of Angel from Kazuya’s body and merged to permanently become Devil Kazuya.
Jin Kazama – Attempted to possess him before he was born. The second half of Devil possessed him later in life, resulting in the tattoo on Jin’s arm. With Angel still in him, Jin is not merged with the Devil in him but can become the form Devil Jin.
During the climax of the third King of Iron Fist Tournament Jin was shot in the head by Heihachi. Revived by the Devil Gene within him, Jin reawakened as Devil Jin and made quick work of Heihachi and the guards that accompanied him. Jin has been able to use the power of Devil to transform into Devil Jin ever since.”

My story’s twist: Jin and Devil have become one but later it becomes known that Devil is actually a son of a great demon, Azazel, demon of war. Devil hates his father and plans to surpass him. His ruthlessness and fighting skills catch the attention of the Infernal ruler, Satan Kurotoki who allows the morphed Devil Jin to become one of the major demon’s of war representing his realm. He respectfully calls the major demons of Inferno brothers and masters.

Demon Occupation: Chief Guardian of Inferno, Beyond the Gates of Gehenna and Chief Demon of War
Fighting Style: Devil fights using Mishima Style Fighting Karate, mixed with supernatural powers.