Shiina

Shiina is a female ninja who fights with dual-wielding kodachi and shuriken. She is able to sense when danger is coming and is a highly capable fighter. Despite her serious demeanor, she has a weakness for cute things like stuffed animals. She is strict in her training and is very self-critical when she fails, especially to a newcomer like Otonashi. She decides that her weakness is having little concentration. She is shown balancing a broom and other objects with her fingers for long amounts of time.