Хасеґава Кобато

Kobato Hasegawa is the female secondary tritagonist from the Boku wa Tomodachi ga Sukunai series. She is Kodaka Hasegawa's younger sister and a student in the middle school division of St. Chronica's Academy who becomes the sixth member of the Neighbor's Club (with Yozora Mikazuki's approval) despite her juniority. She is very close to her brother and behaves in a jealous and clingy way whenever she feels that he is not giving her the attention she deserves, almost to the point where it is obvious that she has a brother complex. Shortly after birth Kobato and Kodaka's mother had passed away.

Due to their father's low interaction with them, Kodaka had taken care of Kobato at a young age thus her becoming extremely clingy towards him. She sees Maria as a rival for Kodaka's brotherly affections and often gets into fights with the latter. The reason Kobato cannot make friends, (or rather, doesn't want to make any friends) is that she is under a constant self-delusion of being a Gothic vampire, and being naturally shy. In fact, she is wildly popular with the other students of her class, boys and girls alike. She has a penchant for darkness, vampires, and the macabre ever since she started watching an anime called Full Metal Necromancer.

As a result, she often speaks in an affected fashion and claims to be known as "Reisys VI Felicity Sumeragi", an ancient vampire who has lived for ten thousand years, but this façade quickly breaks down when she gets emotionally worked up and she speaks in a strong Kyūshū accent. Indeed, her behavior does not for the most part differ from that of a regular girl (procrastinating with her homework, staying inside when it is hot, etc.) which Kodaka points out, causing her to be embarrassed and slightly lose character. Despite having the tendency to avoid strangers, Kobato seems to appreciate people who would act as a guardian to her, particularly her brother and Yozora.