Saeko Busujima is a student at Fujimi High School, a member and unofficial point man of the survivor group led by Takashi Komuro and the daughter of Master Busujima. Before the apocalypse, she was in her Third year and was also captain of the Kendo Club at Fujimi High School. 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 Miyamoto, Saeko is an athletic fighter and talented combat specialist whose forte is in melee attacks, which 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".