Triten | Danbooru

A character introduced in Mahou Tsukai no Hako, and the original form of Hibino Hibiki. The Holy Scripture Triten was completed by the dead apostle Caubac Alcatraz in the year 1000 as his thesis on God's love. Triten ended up being a complete model of the universe, resulting in Caubac creating an inescapable labyrinth to protect it from the outside world. She inexplicably woke up one day as the human Hibiki, causing him to undergo a crisis of faith. As Hibiki, she identifies Caubac as her grandfather. Unlike Hibiki, Triten is genderless and has white hair.

In Fate/Grand Order they are playable as the Alter Ego Servant Sirius, the third ascension of Azumi-no-Isora introduced in Odoru Dragon Castle! event.

Character Design: Takeuchi Takashi, Anmi
Voice Actress: Honda Youko