Oni is the main character of the upcoming 2022 film "Hentatsu", positioned as part of a "grand series". The project involves a "USA movie" scenario centered on conflicts involving "demon power". Specific details regarding Oni's background, personality, physical appearance, abilities, character development, backstory, story arc, relationships, evolution, or role across any official "Hentatsu" media (including seasons, films, OVAs, or spin-offs) are not documented in the available sources.