11th volume cover of manga adaptation of My Friend's Little Sister Has It In for Me!
Manga

My Friend’s Little Sister Has It in for Me Manga Ends This Fall

The latest update for Tomodachi no Imōto ga Ore ni Dake Uzai (My Friend’s Little Sister Has It In for Me!) has fans bracing for one last chapter: Hira Hiraoka’s manga adaptation, drawn from Ghost Mikawa’s light novel series, will conclude with its 12th volume slated for early fall. The announcement, revealed alongside the 11th volume, marks the approaching end of a romcom that blended teasing heroics, workplace aspirations, and the classic “fake boyfriend” setup into a steadily popular series across print and anime formats.

11th volume cover of manga adaptation of My Friend's Little Sister Has It In for Me!
Image via Amazon Japan

What the announcement says — and what it means

The manga adaptation by Hira Hiraoka, serialized on Square Enix’s Manga UP! platform, confirmed that the story will wrap up with volume 12, expected in early fall. The 11th volume was published in March 2025, and the series’ first light novel volume, illustrated by tomari, debuted in April 2019. For readers following the English release, Manga UP! Global has been publishing the manga digitally, making it easy to track volumes as they arrive.

Quick refresher: the premise and core characters

At the heart of the story is Akiteru, an awkward but earnest protagonist who’s better at debugging code than navigating romance. The plot kicks into gear when Akiteru must play the pretend boyfriend to his game-developer uncle’s daughter as part of a business-related condition — a setup that collides head-on with constant teasing from Iroha, his best friend’s younger sister. Through comedic misunderstandings and slow-burn developments, the series has balanced workplace ambition, friendship, and romantic comedy beats.

Why readers care about volume 12

An announced final volume always raises questions: will the ending be conclusive or open-ended? Will lingering relationship threads be resolved? For a romcom rooted in character growth and teasing chemistry, a final volume is an opportunity to bring long-running emotional beats to a satisfying close — whether that means an explicit commitment between leads, a realistic time-skip epilogue, or a bittersweet farewell that honors character development.


Story closure and pacing expectations

Given that the adaptation has reached volume 11 and the announcement specifies one final volume, readers can reasonably expect a more focused narrative in volume 12: fewer new subplots and a deliberate push to resolve the central Akiteru–Iroha dynamic and any outstanding workplace or friendship arcs. Fans should look for tightened pacing, decisive character choices, and perhaps an epilogue that clarifies the characters’ futures after the “pretend boyfriend” arrangement concludes.

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Where to read and watch

For manga readers, the adaptation is available on Square Enix’s Manga UP! website, with Manga UP! Global handling the English digital release. If you prefer streaming the anime adaptation, the television series premiered on October 4 in the NUMAnimation block on TV Asahi and aired on several affiliate channels; Crunchyroll streamed the anime as it aired. These platforms are the official, reliable ways to follow the series and support the creators. For convenience, check the Manga UP! Global storefront or Crunchyroll’s catalog to confirm availability in your region. (Manga UP! Global, Crunchyroll.)

What the ending could mean for the franchise

An ending in volume 12 does not necessarily mean the franchise will vanish. Light novel sources often continue to inspire spin-offs, side stories, or even special one-shot chapters. Additionally, anime adaptations sometimes prompt renewed interest in source material — if demand holds, there may be reprints, special edition releases, or extra volumes compiling bonus content, side stories, or author extras. Fans should keep an eye on official publisher announcements for any post-conclusion releases or special editions.


Merchandise, adaptations, and fan engagement

With the anime already aired and the manga concluding, publishers and licensors sometimes release commemorative merchandise or final-volume bundles that include exclusive artwork, short story booklets, or interviews with the creative team. If you’re collecting, consider pre-ordering or following the publisher’s official channels for limited-run items tied to the series’ finale.

How to prepare for volume 12

  • Catch up on the manga and light novel volumes you’ve missed to appreciate the payoff in the final volume.
  • Bookmark official retailer pages and publisher announcements — final-volume releases sometimes include bonus content or varying cover art across regions.
  • Engage with the fan community in a spoiler-aware way: if you want to avoid plot reveals, mute keywords until you’ve read the final volume.

Final thoughts

The announcement that Hira Hiraoka’s manga adaptation of Ghost Mikawa’s My Friend’s Little Sister Has It In for Me! will end with volume 12 marks the end of a distinctive slice-of-life romcom run that began in 2019 and expanded into anime territory. While endings are bittersweet, they also offer closure — a chance to celebrate the characters’ journeys and the creative team’s work. Whether you’re following for the teasing comedy between Akiteru and Iroha or the series’ workplace-and-friendship elements, volume 12 should provide the denouement readers have been waiting for. Keep an eye on official channels for the exact release date in early fall and any special final-volume content.