Unexpectedly Naughty Fukami

Unexpectedly Naughty Fukami

CompletedTV Series🇯🇵

What happens

Unexpectedly Naughty Fukami (やたらやらしい深見くん, Yatara Yarashii Fukami-kun) is a 2026 Japanese workplace BL romantic comedy adapted from Ayaka Matsumoto's ongoing manga of the same name. At its centre is Kaji Akihiro (Kashio Atsuki), a sales department ace admired across his Tokyo office for his looks, his charm and his effortless way with clients. What his colleagues never see is the private arithmetic behind that smile: Kaji secretly ranks everyone he meets on a numerical attractiveness scale, and almost nobody clears the bar. Sitting well below it is Yu Fukami (Yu Miyazaki), a quiet, unremarkable coworker he has barely registered in years of sharing the same floor.

When a manager pairs the two for an overnight business trip, Kaji resigns himself to two forgettable days of polite small talk. The trip does not go that way. Away from the office, an after-hours conversation reveals that Fukami holds the same guarded, faintly cynical view of love and casual attachment Kaji has spent years perfecting. What starts as curiosity between two people who each pride themselves on feeling nothing slowly, clumsily, turns into something neither will name aloud. Back in Tokyo the scoring system stops working, Fukami's daytime blankness starts to look deliberate, and every attempt to keep things casual only tightens the knot.

Directed by Emiko Shirai from a screenplay by Nao Shioji and produced by Kazuhiro Ito, the ten-episode late-night miniseries premiered on Tokyo MX on 7 April 2026 and ran weekly through its 9 June finale. Its short episodes keep the register light and quick, closer to office farce than melodrama.

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 Lewd Fukami-kun, Excessively Naughty Fukami-kun, Naughty Fukami, Fukami-kun, Fukami-kun (Live-Action Drama), UNF
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 under the Glanz BL Comics imprint. The manga previously received a 2025 short-form anime adaptation by Studio Hōkiboshi, making this 2026 series, directed by Emiko Shirai, the franchise's first live-action screen adaptation.
Themes
Key Themes
Workplace RomanceOffice BLCasual RelationshipSlow BurnSelf-Absorbed LeadHidden PersonalityLate-Night BLBusiness TripSalaryman RomanceManga AdaptationNo-Strings ArrangementFranchise AdaptationJapanese BL
Country
Language
Japanese
Producer
Kazuhiro Ito
Original Author
Ayaka Matsumoto
Seasons
1
Episodes
10
Duration
13 min
Aired Start
Aired End
Release Year
Content Rating
MA
Production Co

Where to watch Unexpectedly Naughty Fukami

GagaOOLalaU-NEXTFODPrime Video

Before You Watch

  • A 2026 Japanese BL late-night drama adapted from Ayaka Matsumoto’s ongoing manga.
  • Kashio Atsuki plays Kaji Akihiro, the sales ace, and Yu Miyazaki plays Yu Fukami, the quiet coworker.
  • Ten episodes of about 13 minutes aired on Tuesdays on Tokyo MX from 7 April to 9 June 2026.
  • Directed by Emiko Shirai, with a screenplay by Nao Shioji and production by Kazuhiro Ito.
  • Streams in Japan on DMM TV, TVer, U-NEXT, FOD and Prime Video Japan, with English subtitles on GagaOOLala.
  • Seven Seas Entertainment publishes the manga in English print from 29 September 2026.

Reviewed by Renkaze

7/10

Confession: I am weak for a smug office ace who gets humbled, and Kaji Akihiro is smugness in a good suit. He is the sales department star of his Tokyo office, everyone adores him, and behind the smile he is running a private points system on every person he meets. Almost nobody passes. Yu Fukami, the plain coworker a few desks away, is not even close.

Your Score Has Been Updated

Then a manager sends the two of them on an overnight business trip, and the spreadsheet in Kaji's head crashes. An after-hours chat shows that Fukami has the exact same guarded, slightly cynical attitude to love and casual attachment that Kaji thought was his own personal brand. Two men who are proud of feeling nothing, stuck together, slowly discovering they feel something. You can see where this is going, and that is half the fun.

The Coworker With a Second Setting

Yu Miyazaki gets the juicy part here. Fukami is a blank page in the daytime, and once you know what he is like after hours, that blankness starts to look like a choice. Kashio Atsuki plays Kaji with a calm, calculated surface, which makes the moments when his system stops working even funnier. It is basically a two-hander, so if you came for these two, you get these two, almost nonstop.

Thirteen Minutes, Tuesday, Way Past Bedtime

Format check: ten episodes of about 13 minutes, aired late at night on Tokyo MX on Tuesdays from 7 April to 9 June 2026. Each one is about the length of a coffee break, which is dangerous, because "just one more" turns into the whole season before your tea is cold. Outside Japan, GagaOOLala has it with English subtitles, and in Japan it sits on DMM TV, TVer, U-NEXT, FOD and Prime Video Japan. Director Emiko Shirai and screenwriter Nao Shioji keep it light and quick, closer to office farce than melodrama.

Collect the Whole Set

Ayaka Matsumoto's story has now lived three lives. There is the ongoing Unexpectedly Naughty Fukami (Manga), the 2025 short-form Unexpectedly Naughty Fukami (Anime) from Studio Hōkiboshi, and this, the first version with real actors. If you only have an evening, start with the live action, then pick up the manga if you want more.

This one is for office romance lovers, slow burn fans who like their burn to come with jokes, and anyone who enjoys watching a guy with a rating system get rated right back. Flirty and grown-up in tone, so file it under late-night snack, not family viewing.

Final Score: 7/10

OFFICIAL TRAILER

OFFICIAL OST

Episode guide: Unexpectedly Naughty Fukami

10 / 10 episodes aired · Completed
EP 1
07 Apr 2026
Aired
EP 2
14 Apr 2026
Aired
EP 3
21 Apr 2026
Aired
EP 4
28 Apr 2026
Aired
EP 5
05 May 2026
Aired
EP 6
12 May 2026
Aired
EP 7
19 May 2026
Aired
EP 8
26 May 2026
Aired
EP 9
02 Jun 2026
Aired
EP 10
09 Jun 2026
Aired

FREQUENTLY ASKED QUESTIONS

What kind of broadcast slot did it occupy?

A late-night one. Episodes went out on Tokyo MX at 01:20 on Tuesdays, running about thirteen minutes each, which is the standard shape for Japanese late-night drama, not a prime-time hour.

How much notice was there before it aired?

Under six weeks. The live-action adaptation was announced on 27 February 2026 and the first episode went to air on 7 April.

Where can it be watched?

In Japan on DMM TV, TVer, U-NEXT, FOD and Prime Video Japan, and with English subtitles on GagaOOLala.

Who plays Kaji and Fukami?

Kashio Atsuki plays Kaji Akihiro (梶彰弘), the sales department ace admired across his Tokyo office, and Yu Miyazaki plays Fukami Yu (深見悠).

How many volumes does the source manga have?

Four volumes have been published in Japan, the fourth on 16 January 2026, and the manga is still ongoing.

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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