Question: is oni and akuma the same person?
Answer: Both secret boss and playable versions of a new form of Akuma, known as Oni (狂オシキ鬼, Kuruoshiki Oni, lit. The Mad Demon), were confirmed in Super Street Fighter IV: Arcade Edition by leaked videos. Unlike Shin Akuma, Oni is the being that would consume Akuma after mastering the Satsui no Hadou.