Saeko Busujima (毒島冴子, Busujima Saeko) is a student at Fujimi High School and a member of the survivor group led by Takashi Komuro and is the daughter of Master Busujima. Back in Fujimi High School, she was in the Third year and was also captain of the Kendo Club.
In the group, Saeko is considered the most reliable of all fighters, and everyone can count on her combat skills to pull them through a tough spot if need be. Like Rei, Saeko is an athletic fighter and talented combat specialist whose forte is in melee attacks. She is one of the reasons why the protagonists have managed to survive as far as they have. At the beginning of the series, she uses a bokken (wooden sword) that she used to fight "Them" with, but she was later given a sword by Souichiro Takagi to fight "Them".
