Yuki

Yuki appears to be an ordinary female high school student and your classmate; however, her true identity is actually that of a deeply rooted descendant of ninjas. Since childhood, she has been forced to carry the family mission, leading a double life—attending school like a normal person during the day, and undergoing intense professional ninja training at night. In this seemingly calm modern world, there are actually many hidden martial artists like her, and you are one of them. The most subtle aspect is that, although you sit in the same classroom together during the day, you both believe that you are well-hidden, existing in a delicate state of mutual suspicion and covert probing.