I'm a Behemoth, an S-Ranked Monster, but Mistaken for a Cat, I Live as an Elf Girl's Pet
First light novel volume cover
Ｓランクモンスターの《ベヒーモス》だけど、猫と間違われてエルフ娘の騎士ペットとして暮らしてます (Esuranku Monsutā no "Behīmosu" dakedo, Neko to Machigawarete Erufu Musume no Kishi Petto to Shite Kurashitemasu)
I'm a Behemoth, an S-Ranked Monster, but Mistaken for a Cat, I Live as an Elf Girl's Pet[a] is a Japanese light novel series written by Nozomi Ginyoku and illustrated by Mitsuki Yano. It began serialization on the user-generated novel publishing website Shōsetsuka ni Narō in August 2017. It was later acquired by Micro Magazine who began publishing it under their GC Novels imprint in March 2018. A manga adaptation illustrated by Taro Shinonome began serialization in Hakusensha's Young Animal Arashi magazine in March 2018 before being transferred to the Young Animal magazine in July of the same year. An anime television series adaptation produced by Zero-G and Saber Works is set to premiere in January 2025.
Plot
An unnamed knight is killed and reincarnates as a baby behemoth, one of the greatest monsters, which happens to resemble an ordinary cat. A beautiful elf girl named Aria adopts him as a pet and names him Tama. He quickly falls in love with her, and when he demonstrates his incredible powers to protect her, everyone assumes that he is an elemental cat. Aria had bad experiences with men but grows to love Tama, and several other females fall in love with him too.
Written by Nozomi Ginyoku, I'm a Behemoth, an S-Ranked Monster, but Mistaken for a Cat, I Live as an Elf Girl's Pet began serialization on the user-generated novel publishing website Shōsetsuka ni Narō on August 19, 2017.[5] It was later acquired by Micro Magazine who began publishing it with illustrations by Mitsuki Yano under their GC Novels imprint on March 30, 2018. Two volumes have been released as of October 2018.[6] During their Anime Expo 2019 panel, Yen Press announced that they licensed the light novel.[7]
A manga adaptation illustrated by Taro Shinonome began serialization in Hakusensha's Young Animal Arashi magazine on March 2, 2018.[11] The manga was later transferred to the Young Animal magazine on July 13 the same year.[12] The manga's chapters have been collected into twelve tankōbon volumes as of December 2024.[13] During their Anime Expo 2019 panel, Yen Press announced that they also licensed the manga adaptation.[7]
An anime television series adaptation was announced on March 18, 2024.[2] It is produced by Zero-G and Saber Works, and directed by Tetsuo Hirakawa, with Kanichi Katō in charge of series scripts, Tomoyuki Abe designing the characters, and Yūsuke Shirato and Oni composing the music.[3] The series is set to premiere on January 4, 2025, on Tokyo MX and other networks.[35] The opening theme song is "Saijōkyū no Kokoro" (最上級の心, Supreme Heart) by Nonoka Ōbuchi,[4] while the ending theme song is "Rimi" (リミー) by Poka Poka Ion, a special music unit of voice actresses Nao Tōyama and Kiyono Yasuno.[35]Sentai Filmworks licensed the series under the title Beheneko: The Elf-Girl's Cat is Secretly an S-Ranked Monster! in North America for streaming on Hidive.[36]Muse Communication licensed the series in Asia-Pacific.[37][38]
A knight is killed by a demon and reincarnates in a dungeon as a baby behemoth, which looks like a cat. He kills and eats a slime, wyvern, minotaur, golem, and poison serpent and gains their abilities, and learns how to store items in a pocket dimension. An elf named Aria enters the dungeon. The behemoth finds a treasure chest, but touching it teleports him to a hostile earth dragon. He escapes with heavy injuries, then Aria finds him, takes him home, and nurses him back to health. When he is healed, he discreetly follows her to the dungeon, vowing to protect her. She kills goblins, then he saves her from a goblin mage. They return to her guild where a man named Kasman sexually harasses her, prompting the behemoth to attack him. Kasman draws his sword, but the guild receptionist, Arnold Holzweilzenegger, makes him leave. Aria names the behemoth Tama and says he is her pet. They bathe and she confides that as a child, demons attacked her village until they were saved by Alisha the Sword Saint, which made her aspire to be just like Alisha. Later, Kasman got a paper from a baron to have Tama euthanized, then challenges Aria to a duel. If she wins, Tama will live, but if he wins, she must marry him. He allows her to have a partner, but only Tama volunteers. With Arnold as the judge, the duel begins and Kasman swiftly overpowers Aria, but Tama uses his powers and beats Kasman, ending with his own sword falling on his groin. Everyone mistakes Tama for an elemental cat as Aria is declared the winner and allowed to keep him.
2
"The Tiger-Eared Blacksmith and a New Skill"
TBA
TBA
TBA
January 11, 2025 (2025-01-11)
Notes
^Japanese: Ｓランクモンスターの《ベヒーモス》だけど、猫と間違われてエルフ娘の騎士ペットとして暮らしてます, Hepburn: Esuranku Monsutā no "Behīmosu" dakedo, Neko to Machigawarete Erufu Musume no Kishi Petto to Shite Kurashitemasu
^Episodes are released on ABEMA, HIDIVE and simulcast platforms by Muse a week before their televised airings.[41]
