A member of the Chaldea Security Organization’s staff. Born as a designer baby meant to be a vessel for a Heroic Spirit, she has the abilities of a Demi-Servant of the Shielder-class. Ever since the explosion, she has fought alongside Fujimaru on the mission to repair the Singularities. Despite knowing she is at her physical limit, she chooses to accompany him once again to the Final Singularity. She tends to call Fujimaru "Senpai".