MONOGATARI Series: OFF & MONSTER Season

What is MONOGATARI Series: OFF & MONSTER Season about?

MONOGATARI Series: OFF & MONSTER Season is an ONA (an anime released online first) of 14 episodes animated by Shaft, adapted from a light novel. It aired from July 6, 2024 to October 19, 2024. AniList classifies it as drama, mystery and supernatural. It continues from Zoku Owarimonogatari, which is worth watching first.

Synopsis from AniList, which credits Monogatari Series USA Official Website. The summary above it is written by FreeAnime.xyz from AniList's data.

Themes AniList users associate with it: Philosophy, Urban Fantasy, Youkai, Primarily Female Cast, Vampire, Female Protagonist, Achronological Order, Urban, Meta, Coming of Age.

Main characters

Characters AniList lists in a main role, with spoiler-free notes.

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  Yotsugi Ononoki 斧乃木余接

  Main character

  Yotsugi Ononoki is an expressionless human corpse tsukumogami and the shikigami familiar of Yozuru Kagenui. Despite appearing almost entirely stoic, she still has hinted at feeling genuine emotion.

  Japanese voice: Saori Hayami

• 

  Tsukihi Araragi 阿良々木月火

  Main character

  Tsukihi, the main character of Tsukihi Phoenix, is one of Koyomi's sisters. She's the youngest of Araragi family. Unlike her sister, Karen, she is always doing indoor activities.

  Japanese voice: Yuka Iguchi

• 

  Nadeko Sengoku 千石撫子

  Main character

  Nadeko, the main character of Nadeko Snake, is Tsukihi’s friend back in elementary school. She always wears a waist pouch, always casts her eyes downward, has her bangs covering her eyes, has a shy personality, and can be easily amused.

  Japanese voice: Kana Hanazawa

• 

  Shinobu Oshino 忍野忍

  Main character

  A girl who lives with Oshino Meme in an abandoned building. She loves donuts from the Mister Donut chain. At the beginning of Hitagi Crab, she was renamed "Shinobu" by Meme, who suggested that the name Shinobu (忍), comprised of a heart (心) under a blade (刃), matched her original persona.

  Japanese voice: Maaya Sakamoto

• 

  Deathtopia Virtuoso Suicide-Master デストピア・ヴィルトゥオーゾ・スーサイドマスター

  Main character

  Deathtopia is a purebred vampire, possibly being the longest living one known to man. She is very arrogant and prideful, urging others to use the name that she created for herself. She is known for the long, bizarre names she creates. Her many deaths and lack of eating have caused her to shrink, much like Shinobu.

  Japanese voice: Rica Fukami

• 

  Koyomi Araragi 阿良々木暦

  Main character

  A third year high school student who is close to failing every class except math. He is a laid-back person whose only real friend at school is Tsubasa Hanekawa. Due to events prior to Kizumonogatari and Bakemonogatari, Koyomi avoided having friends and seemed to have lost faith and trust in people and himself.

  Japanese voice: Hiroshi Kamiya

Supporting characters

• 

  Ougi Oshino 忍野扇

  Supporting character

  Ougi appears to be a girl with short black hair, black pupils, and pale white skin. She is a junior of Koyomi Araragi at Naoetsu Private High School. Ougi often talks to Koyomi about oddities, and helping him remember what he knows. Her catchphrase is, "I don't know anything, Araragi-senpai.

  Japanese voice: Kaori Mizuhashi

• 

  Hitagi Senjougahara 戦場ヶ原ひたぎ

  Supporting character

  Hitagi, the main female character, is a weak-looking girl with an "incurable disease". She is in the same class as Koyomi Araragi, but he has almost never heard her speak. When she was in the first year of high school, she encountered a mysterious crab, after which she became weightless.

  Japanese voice: Chiwa Saitou

• 

  Mayoi Hachikuji 八九寺真宵

  Supporting character

  Mayoi is a fifth-grade elementary school girl. She always carries a big backpack, wears a hairband, and sports ponytails.

  Japanese voice: Emiri Katou

• 

  Suruga Kanbaru 神原駿河

  Supporting character

  Suruga, the main character of Suruga Monkey, is Koyomi's underclassman, ace of the school's basketball team and one of Hitagi's acquaintances from back in junior high school. Immediately after she entered senior high school, she became aware of Hitagi's secret and was threatened by her, just like Koyomi was.

  Japanese voice: Miyuki Sawashiro

• 

  Sodachi Oikura 老倉育

  Supporting character

  Koyomi Araragi's childhood friend. She is a student with a strong sense of competitiveness which led to her popular nickname, much to her chagrin. Sodachi was the president of a first-year class where both Hitagi and Koyomi also belonged to.

  Japanese voice: Marina Inoue

• 

  Karen Araragi 阿良々木火憐

  Supporting character

  Karen, the main character of Karen Bee, is one of Koyomi's sisters. She is older than Tsukihi and always doing outdoor activities. Despite being younger, Karen is taller than Koyomi, much to Koyomi's dismay.

  Japanese voice: Eri Kitamura

• 

  Yozuru Kagenui 影縫余弦

  Supporting character

  Yozuru was first introduced in Tsukihi Phoenix. She is an onmyouji and one of Meme's clubmates at the university. As a rule she imposed on herself, she's not allowed to step on the ground. Between the three kouhai during university she was the only one who graduated.

  Japanese voice: Ryouko Shiraishi

• 

  Izuko Gaen 臥煙伊豆湖

  Supporting character

  She is a young-looking woman who wears clothes that are too large for her. Izuko often boasts about her knowledge, coming off as somewhat arrogant.

  Japanese voice: Satsuki Yukino

• 

  Seiu Higasa 日傘星雨

  Supporting character

  Seiu is a member of the basketball team with Suruga Kanbaru. During her second year, she was the vice-captain. After Suruga retired due to the Rainy Devil's effects, Seiu became the captain. Seiu is a student at Naoetsu High and is in the same year as Kanbaru.

  Japanese voice: Youko Hikasa

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  Tropicalesque Home-A-Wave Dog-Strings トロピカレスク・ホームアヴェイヴ・ドッグストリングス

  Supporting character

  Tropicalesque is the former minion of Deathtopia. Like most vampires, he was formerly human, though he despised humans afterwards. He was extremely loyal toward Deathtopia, but grew jealous of Kiss-Shot.

  Japanese voice: Daisuke Hirakawa

• 

  Meniko Hamukai 食飼命日子

  Supporting character

  A student at National University of Kyokuritsu Manase. Appears in "Shinobu Mastered/Mustard". The first friend that Koyomi made after entering the university, who is not involved in any mysterious phenomena.

  Japanese voice: Momo Asakura

• 

  Kie Harimaze 貼交帰依

  Supporting character

  1st Year student at Naoetsu Private High School and part of the Girls' Basketball Club. She's fed up with practices and her failing grades.

  Japanese voice: Mikako Komatsu