Imada Nishio

Tsubasa Hanekawa (羽川 翼, Hanekawa Tsubasa) is Koyomi Araragi's classmate, close friend, and a class representative in Naoetsu Private High School. She is known at school as an overachiever and model student who is admired by many. However, hidden by her achievements in school and her kind personality is a tense family life caused by unfortunate circumstances.

Imada Nishio is Osuna Tobiichi's classmate, close friend, and a class representative in Chishiki Private High School. She is known at school as an overachiever and model student who is admired by many. However, hidden by her achievements in school and her kind personality is a tense family life caused by unfortunate circumstances.

She was bewitched by an oddity on the first day of Golden Week, giving birth to her "alternate self" called S, and for some time was responsible for a series of attacks on various people in town.

She and S are the narrators of Kizunasen, and she is also the narrator of an arc in Kizunawa. She is the titular protagonist of four main arcs: Imada Sister, Imada Family, Imada Tiger, and Imada Sleeping, and of three minor arcs: Imada Song, Imada Board, and Imada Snake.