Yūki Terumi(ユウキ＝テルミ), also known as the Black Susano'o(黒いスサノヲKuroi Susano'o), whose real name is Takehaya Susano'o(建速須佐之男), is the true main antagonist of the series and a former member of the Six Heroes, as well as the creator of the Azure Grimoire. He is also the founder of both the Novus Orbis Librarium and Sector Seven, often manipulating both sides to reach his goals. He is featured as a playable DLC character in BlazBlue: Chronophantasma and reappears as a playable character in BlazBlue: Centralfiction where he is the final antagonist in the story mode. In the previous entries he only appears as a NPC due to him sharing Hazama's body until they were separated. He is eventually slain by Ragna and is revealed to be the god Susano'o of Japanese mythology, whose final form introduced in