Unexpectedly Naughty Fukami anime (2025) key visual - Japanese BL by Studio Hokiboshi

Unexpectedly Naughty Fukami (Anime)

CompletedAnime🇯🇵

What happens

Unexpectedly Naughty Fukami (やたらやらしい深見くん, Yatara Yarashii Fukami-kun) opens inside the private scoring system of a man who believes he has everyone figured out. Kaji Akihiro (Chasuke) is the sales department's ace, admired for his looks and his effortless charm, and quietly rating every colleague on a numerical attractiveness scale that almost nobody clears. Yu Fukami (Marshmallow Yakitaro), the outwardly plain colleague from the IT department, does not register on that scale at all. Kaji has walked past him for months without forming a single opinion worth keeping.

An overnight business trip puts the two of them in the same place after hours, and the version of Fukami who emerges there has nothing to do with the one Kaji has been ignoring. The encounter dismantles Kaji's assumptions about his colleague and, far more uncomfortably, about himself. What starts as curiosity hardens into a stubborn, slow-burning attachment between a self-absorbed salesman and a deceptively striking otaku who is in no hurry to explain himself. The six-minute episodes swing between cynical office comedy and something more exposed, and with only eight instalments the story stays with the two leads.

Studio Hōkiboshi produced the anime for AnimeFesta, adapting Ayaka Matsumoto's ongoing manga, serialized on ComicFesta under the Screamo label since December 2022 and collected into four volumes by Suiseisha. Akane Ozora directed. The eight episodes aired from March 14 to June 9, 2025 in two forms: the AnimeFesta exclusive carries the streaming edition, which runs longer than the broadcast version, while Tokyo MX and BS11 broadcast a standard, broadcast-safe cut that is also available on U-NEXT and Apple TV+. An English simuldub from Ascendent Animation premiered via OceanVeil on April 6, 2025, the same week as the Japanese run. It is the first screen version of the manga, arriving a year before the 2026 live-action drama drawn from the same source.

CONTENT DETAILS

Native Title
やたらやらしい深見くん
Original Title
Unexpectedly Naughty Fukami
Also Known As
やたらやらしい深見くん, Yatara Yarashii Fukami-kun, Yatara Yarashi Fukami-kun, Yatarayarashii Fukamikun, Unexpectedly Naughty Fukami, Unexpectedly Naughty Fukami-kun, Unexpectedly Naughty Fukami (Anime), Naughty Fukami, Fukami-kun, Fukami-kun Anime, UNF Anime
Adaptation
Unexpectedly Naughty Fukami is adapted from Ayaka Matsumoto's ongoing BL manga of the same name, serialized digitally on ComicFesta under the Screamo label since December 7, 2022 and collected into four volumes by Suiseisha. This 2025 series is the franchise's first screen adaptation, arriving a year before a 2026 live-action drama that adapts the same source material with a different cast and director.
Themes
Key Themes
Workplace RomanceOffice BLShort-Form AnimeSlow BurnEnemies To LoversHidden PersonalityBusiness TripSalaryman RomanceManga AdaptationJapanese BLFranchise AdaptationExtended Streaming EditionAnimeFesta Exclusive
Country
Language
Japanese
Director
Akane Ozora
Producer
Goto Reiga
Screenwriter
Eeyo Kurosaki
Original Author
Ayaka Matsumoto
Seasons
1
Episodes
8
Duration
6 min
Aired Start
Aired End
Release Year
Content Rating
MA

Where to watch Unexpectedly Naughty Fukami (Anime)

U-NEXTApple TV

Before You Watch

  • Unexpectedly Naughty Fukami (2025) is the first screen adaptation of Ayaka Matsumoto’s ongoing BL manga, produced by Studio Hōkiboshi for AnimeFesta.
  • Eight short episodes of about six minutes each, airing March 14 to June 9, 2025.
  • Follows sales ace Kaji Akihiro and IT colleague Yu Fukami in a workplace enemies-to-lovers romance sparked by an overnight business trip.
  • Directed by Akane Ozora, with series composition by Eeyo Kurosaki and character designs by Rena Nasu.
  • Two editions exist: the extended streaming edition exclusive to AnimeFesta, which runs longer than the broadcast version, and a standard broadcast-safe version on Tokyo MX and BS11, also on U-NEXT and Apple TV+.
  • English simuldub by Ascendent Animation streamed via OceanVeil from April 6, 2025, the same week as the Japanese broadcast premiere.

Reviewed by Renkaze

7/10

The 2025 anime adaptation of Unexpectedly Naughty Fukami condenses Ayaka Matsumoto's manga into eight episodes of about six minutes each, produced as an AnimeFesta original.

What It Is

Studio Hōkiboshi's eight episodes follow the same setup that anchors the 2026 live-action drama: a self-absorbed sales ace who silently rates his coworkers, paired on a business trip with the deceptively plain colleague who upends his worldview. Director Akane Ozora and series composition writer Eeyo Kurosaki work with Rena Nasu's character designs to move between office comedy and after-hours intensity inside a six-minute episode.

The voice work comes from Chasuke and Marshmallow Yakitaro, both credited under pseudonyms, and the same two voices sing the theme song, "Bokura no Rendezvous". The AnimeFesta edition is the streaming edition, which runs longer than the broadcast version, and a separate broadcast-safe edit airs on Tokyo MX and BS11.

What Works

  • Short episodes: each six-minute episode moves the Kaji and Fukami relationship forward.
  • Tone: the anime keeps the manga's pivot from cynical comedy to vulnerability.
  • Simulcast: a same-week English dub via OceanVeil ran alongside the Japanese broadcast.
  • Voice at the centre: six minutes leave no room for long shots or held silences, so the performances carry the atmosphere, and a theme song takes a real share of each short instalment.

Who It Suits

Eight episodes of six minutes cover the manga's opening story in a small space, which suits viewers who want the whole premise in under an hour. The 2026 live-action drama adapts the same manga at a longer episode length, so the two versions make a natural pair.

Final Score: 7/10

Eight episodes at six minutes each: the whole season runs 48 minutes.

The 2026 live action drama works from the same manga in ten episodes of 13 minutes, or 130 minutes end to end. One source, two screen versions, and the drama runs roughly two and a half times as long.

Tokyo MX and BS11 carried the series from 7 April to 9 June 2025, a 63 day window holding eight instalments. A premium streaming version had premiered earlier, on OceanVeil on 14 March 2025. The episode dates follow the broadcast schedule rather than the streaming one.

The source manga is still running, so both screen versions were made from a story that has not ended.

Themes

The theme song is performed by the two leads. "Bokura no Rendezvous" is sung by Chasuke and Marshmallow Yakitaro, the same voices that carry Kaji and Fukami, which places the music inside the fiction rather than around it. A theme song takes roughly the same amount of time whatever the episode length, so in six minutes it claims a far larger share of the whole than it would in a half hour slot. A viewer spends a real fraction of each instalment listening to these characters rather than watching them.

That is one answer to the central constraint. Short-form animation has no minutes to spend on long shots or held silences, the usual tools for building atmosphere. What it has instead is voice, and this production leans on that hard at every level, from the performances up to the song itself.

The result works closer to an audio drama with pictures than to a compressed television episode. The form is not a reduced version of something longer. It is a different instrument, and the vocal casting is the part doing most of the work.

Interesting facts

  • Suiseisha, the publisher that collects the source manga in print, also holds a production credit on the anime, which puts the book's publisher on both sides of the adaptation.
  • The adaptation was announced under AnimeFesta's toridori boys love brand.

How it was made

Akinori Shiba is sound director, with sound production by Crocodile. Washimi handled colour design, Chan Do Kim Fan the art setting and art direction, Shurakura Hooin and Takuto Tomozawa the photography, and Koki Shinkai the editing. The character designer is also credited as chief animation director. AnimeFesta announced the adaptation on 21 May 2024, roughly ten months before the streaming premiere.

OFFICIAL TRAILER

OFFICIAL OST

Episode guide: Unexpectedly Naughty Fukami (Anime)

8 / 8 episodes aired · Completed
EP 1
07 Apr 2025
Aired
EP 2
14 Apr 2025
Aired
EP 3
21 Apr 2025
Aired
EP 4
28 Apr 2025
Aired
EP 5
05 May 2025
Aired
EP 6
19 May 2025
Aired
EP 7
02 Jun 2025
Aired
EP 8
09 Jun 2025
Aired

FREQUENTLY ASKED QUESTIONS

Did this anime have more than one release date?

Two separate tracks. The premium streaming version premiered on OceanVeil on 14 March 2025, and the broadcast version followed on Tokyo MX and BS11 from 7 April to 9 June 2025. The episode dates follow the broadcast schedule, so streaming viewers were more than three weeks ahead.

Are the voice actors credited under real names?

No, both leads use handles rather than given names. Chasuke voices Akihiro Kaji (梶彰弘) and Marshmallow Yakitaro voices Yu Fukami (深見悠).

How long is the whole series?

Under an hour. Eight episodes at roughly six minutes each puts the complete run at about forty-eight minutes.

Does its schedule overlap with the live-action version?

Strikingly so. This anime ran 7 April to 9 June 2025, and the 2026 live-action drama ran 7 April to 9 June 2026, the same calendar dates exactly one year apart.

What is the source, and when did it start?

Ayaka Matsumoto's ongoing boys' love manga, serialised digitally on ComicFesta under the Screamo label from 7 December 2022 and collected into four volumes by Suiseisha. This anime is the franchise's first screen adaptation of any kind.

Which studio animated it?

Studio Hokiboshi, with Akane Ozora directing, Eeyo Kurosaki on script and Goto Reiga producing. The 2026 live-action version adapts the same source with an entirely different cast and director, so the two are parallel treatments rather than sequels.

Where can it be found?

On AnimeFesta, Tokyo MX, BS11, OceanVeil, U-NEXT and Apple TV+ across its two release tracks.

Where a title can be watched, and who is credited on it, may have changed since publication, as our disclaimer explains.

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