Yoimonogatari

阿良々木暦

Koyomi is the narrator of all First Season and Final Season arcs as well as two from Second Season, four from Off Season, and three from Monster Season. He is the titular protagonist of two main arcs: Koyomi Vamp and Koyomi Reverse, as well as the twelve short stories of Koyomimonogatari. He is also the titular protagonist of two minor arcs: Koyomi History and Koyomi Dictionary.

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戦場ヶ原ひたぎ

In an accidental encounter with Koyomi Araragi, her closely kept secret is exposed, and triggers a life-changing experience. In the course of the series, she receives the nickname Gahara and uses the alias Senshougahara.

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忍野忍

She was formerly a human princess named Laura who was cursed into causing anyone in proximity to her to commit suicide. She then took the name of Acerola before meeting a purebred vampire that turned her into a powerful vampire named Kiss-Shot Acerola-Orion Heart-Under-Blade (キスショット・アセロラオリオン・ハートアンダーブレード, Kisushotto Aseroraorion Hātoandāburēdo). She now takes the form of an eight-year-old girl with another new name after losing most of her powers.

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八九寺真宵

She is the titular protagonist of five main arcs: Mayoi Snail (Mayoi Mai Mai), Mayoi Jiangshi, Mayoi Hell, Mayoi Snail, and Mayoi Snake, and seven minor arcs: Mayoi Room, Mayoi Castle, Mayoi Name, Mayoi Ghost, Mayoi Escargot, Mayoi Heaven and Mayoi Welcome.

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千石撫子

She is the narrator of Otorimonogatari and Nademonogatari, as well as arcs in Yoimonogatari, Amarimonogatari, Ougimonogatari, and Shinomonogatari. She is the titular protagonist of four main arcs: Nadeko Snake, Nadeko Medusa, Nadeko Draw and Nadeko Around, and three minor arcs: Nadeko Pool, Nadeko Mirror, and Kimi to Nadekko!.

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神原駿河

It's revealed in Nisemonogatari by Deishuu Kaiki (and thought by Koyomi) that her mother's maiden name was Gaen. It's also revealed in Koimonogatari that her mother's name is Tooe Gaen. In Nekomonogatari White, it is also revealed that she used to be called Suruga Gaen.

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斧乃木余接

臥煙伊豆湖

影縫余弦

日傘星雨