Beheneko: The Elf-Girl's Cat is Secretly an S-Ranked Monster!

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 (S-Rank Monster no "Behemoth" dakedo, Neko to Machigawarete Elf Musume no Pet toshite Kurashitemasu)

3.6(1)
OtakuDen
5.8(31,530)
MAL Score
Ranked #12162
Popularity #2735
  • Action
  • Adventure
  • Comedy
  • Ecchi
  • Fantasy
  • Reincarnation
Episodes
12
Duration
23 min per ep
Aired
Jan 4, 2025 to Mar 22, 2025
Status
Finished Airing

Synopsis

A young knight dies while carrying out his vow to protect humanity in a battle against demons—only to awaken in the depths of a dungeon, reincarnated as a Behemoth. Now he’s become an S-class monster of overwhelming power, the very kind of threat he once swore to keep away from people.

Still a juvenile, he can pass for an ordinary orange cat, hiding an ability to absorb the skills of creatures he devours. After barely escaping the dungeon and suffering serious injuries, he’s discovered by Aria, a D-rank adventurer who nurses him back to health and takes him in as her pet, naming him Tama. With his former knightly pride intact, Tama accepts Aria as his master and resolves to protect her at any cost—even if it risks the second life he’s been given.

Otaku Consensus

Beheneko lands as a niche-pleasing Winter 2025 fantasy rather than a breakout, with its best notices going to Tetsuo Hirakawa's brisk handling of cat-versus-monster action and the comic Aria/Tama power imbalance. Viewers who liked it praised the charm of having the protagonist function like a support character, while the recurring criticism was that the adaptation settles into merely average fantasy-ecchi comfort food, reflected in its 5.78 MAL score and 56/100 AniList score.

Why You Should Watch

Watch Beheneko if you want dungeon fantasy with creature-form gimmicks, ecchi comedy, and monster-battle escalation without the kingdom-management sprawl of That Time I Got Reincarnated as a Slime. Its hook is less about power fantasy domination and more about the weird tactical comedy of an overqualified “pet” orbiting a low-rank adventurer, which gives the action a different rhythm from the usual isekai lead steamrolling every scene. The 12-episode run keeps the appeal compact: magic, swordplay, demons, dragons, fairies, elves, kemonomimi, and shapeshifting all appear in the tag profile without demanding a long lore commitment. If you enjoy fantasy series where the mascot is secretly the most dangerous piece on the board, this is tuned directly to that taste.

Key Characters

  • T
    Tama

    Tama is the rare fantasy lead fans discuss as a “side-character protagonist,” because his appeal comes from watching overwhelming combat potential filtered through pet behavior and knightly restraint.

  • A
    Aria

    Aria gives the series its emotional and comedic anchor, with viewers responding to the contrast between her D-rank adventurer status and the absurdly dangerous companion moving through the party dynamic beside her.

What Makes It Stand Out

  • 1

    The anime is a co-production between Saber Works and Zero-G, with Zero-G giving the series a studio link to other contemporary TV fantasy and comedy productions rather than an anonymous outsourced adaptation profile.

  • 2

    Tomoyuki Abe’s name appears across character design, episode 1 animation direction, and episode 1 key animation, making the premiere unusually tied to a single visual supervisor’s hand from model design to motion execution.

  • 3

    The tag profile is unusually concentrated: AniList lists Reincarnation at 93%, Elf at 88%, Animals at 80%, Nudity at 79%, and Dungeon at 76%, which accurately signals a show built around genre-stacking rather than a single fantasy lane.

  • 4

    Its reception split is measurable across platforms: MAL places it at 5.78/10 from 30,962 votes and rank #12074, while AniList records 56/100 with 546 favourites, suggesting a small but identifiable fan pocket rather than broad consensus approval.

  • 5

    The broadcast was a clean single-cour run from January 4 to March 22, 2025, giving the adaptation a contained seasonal footprint instead of a split-cour or long-running format.

Fun Facts & Trivia

Fun fact 1
The source material comes from Nozomi Ginyoku, with Mitsuki Yano credited for the original character designs; the anime’s TV character designs were handled by Tomoyuki Abe.
Fun fact 2
Kanichi Katou handled series composition, while Tetsuo Hirakawa directed, placing the adaptation’s overall pacing and episode structure under clearly credited senior staff rather than an uncredited committee-style listing.
Fun fact 3
Nonoka Oobuchi performed the opening theme, making the OP one of the explicitly credited music-side elements in the available production data.
Fun fact 4
HIDIVE promoted the series with an English dub trailer, which helped position the long-titled fantasy for overseas seasonal viewers rather than only light-novel readers.
Fun fact 5
The full Japanese title, S-Rank Monster no “Behemoth” dakedo, Neko to Machigawarete Elf Musume no Pet toshite Kurashitemasu, preserves the modern light-novel habit of putting the central joke and status hierarchy directly in the title.

Studios

  • Saber Works
  • Zero-G

OtakuDen Community

Avg Rating
3.6(1 rating)
Members
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Finish Rate
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