Haruna Niekawa

Haruna Niekawa is a former Raira Academy student who transferred to another high school because of a rumor that she and Takashi Nasujima, a teacher, were dating. In volume 10, she is said to be a member of the Dollars. When Haruna is first introduced, she is shown to have long, slightly unkempt black hair that extends down to her waist. She also has a blank yet manic smile on her face, likely caused by Saika driving her insane. In her first appearance, she wore her school uniform, which was similar in design to Raira's save for the much longer skirt and yellow tie. When she returns in volume ...

It is made very clear that Haruna was driven half-mad by Saika's influence and has deluded herself into believing she has control over the demon blade, when in reality it is the other way around. Under the influence of a daughter blade of Saika, Haruna fell in "love" with her teacher, Nasujima. She ...