Manami Suda

Manami Suda is a recurring character in the Jujutsu Kaisen series and its prequel Jujutsu Kaisen 0: Jujutsu High. She is a curse user who used to be Suguru Geto's secretary as well as a commander in his "family" of sorcerers. After Suguru's death, Manami and Toshihisa Negi both decided to carry on his will by joining the entity to who stole his body.

(Source: Jujutsu Kaisen Wiki)