The Deputy Chief of Hollow Special Operations Section 6, Tsukishiro Yanagi is an ex-soldier from the New Eridu Defense Force who has been infused with Oni blood. Her main jobs include general management, and on-site support, alongside all these duties, she usually finds herself having to complete the rest of the team's tasks as well. Due to the unique personalities of the other Section 6 members, Yanagi's seriousness and diligence classify her as the only "normal" member of the team.