S-Rank Monster no "Behemoth" dakedo, Neko to Machigawarete Elf Musume no Pet toshite Kurashitemasu
English title: Beheneko: The Elf-Girl's Cat is Secretly an S-Ranked Monster!
Japanese title: 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
Alternative titles: I'm an S-Rank "Behemoth" Monster, but I'm Living as a Pet of an Elf Girl, I'm a Behemoth, an S-Ranked Monster, but Mistaken for a Cat, I Live as an Elf Girl's Pet
Type: TV
Source: Manga
Episodes: 12
Status: Finished Airing
Aired: Jan 4, 2025 to Mar 22, 2025
Broadcast: Saturdays at 22:30 (JST)
Duration: 23 min per ep
Rating: R+ - Mild Nudity
Studios: Zero-G, Saber Works
Producers: Hakusensha, KlockWorx, flying DOG, Studio Mausu, Hakuhodo DY Music & Pictures, BS11, Bushiroad Move
Licensors: Sentai Filmworks
Genres: Action, Adventure, Comedy, Fantasy, Ecchi
Themes: Reincarnation
Demographics: Seinen

Nobody asked to be a cat!

After dying in a fight against the forces of evil, a knight is shocked to discover that instead of being reborn as a hero of humanity, he starts his new life as a behemoth-one of the most powerful monsters in the world! The only problem is that a baby behemoth looks an awful lot like...an adorable house cat?! Things grow even more confusing when a beautiful elf adventurer rescues him from the brink of death rather than finishing him off. This house-cat-slash-knight's baffling journey is just getting started...

(Source: Yen Press)