Takamatsu Shiera

Takamatsu Shiera (高松祇恵良) is the chairwoman of Yurigaoka Girls' Academy. She is the elder sister of Takamatsu Kogetsu.

As Shiera is in poor health, her brother Kogetsu serves as acting chairman of Yurigaoka and handles most of her duties. One duty that she still performs is that of being a formal witness to the Schutzengel's Oath; she is attested on paperwork to have witnessed Hitotsuyanagi Riri and Shirai Yuyu's oath.

Shiera was one of the few survivors of the Battle of Antarctica, the first major battle against the Huge. She fought in this battle alongside her brother Kogetsu and the disgraced soldier Ando Soitsu, the father of Ando Tazusa, and has a personal interest in restoring Soitsu's good name.

Shiera is rumored to have a mysterious Rare Skill known as Amatsukami. It is unknown what this skill does or if she used it during the Battle of Antarctica.

Shiera is a Boosted Lily, and Yurigaoka is hostile to GEHENA because of her personal desire that "no one should have to go through what I did". She is rumored to have spent time in the same GEHENA lab as Tada Shiera, and to have acquired a Boosted Skill called Nosferatu, with the result that she has stopped physically aging and her Magi capacity has also not diminished.

Despite their similar names, Futagawa Fumi claims that there is no special relationship between Takamatsu Shiera and Tada Shiera aside from them both being Boosted Lilies.