We love playing Tekken 7 and we had a lot of fun participating in several local tournaments. Someone who plays as Heihachi was hoping there would be a devil form of the character in the next game release. So we made Concept Art based on that idea. Story-wise, the idea was that Heihachi would find a way to isolate the devil gene and maybe inject it as a serum. You can see the serum in his veins.