My Friend's Little Sister Has It In for Me! poster

My Friend's Little Sister Has It In for Me!

Tomodachi no Imouto ga Ore ni dake Uzai

友達の妹が俺にだけウザい

Other names 4
Chinese
朋友的妹妹只喜欢烦我
Also known as
ImoUza
Also known as
いもウザ
Also known as
น้องสาวเพื่อนตัวร้ายกับนายจืดจาง

Overall score 6.4/10

Fall 2025#43 (#43 overall)

Overall score Sentiment 5.4 · 22% positiveChinese audience 6.7English audience 6.3

12 eps · Finished

BLADELight novel adaptationPremiered Oct 5, 202523 min per episode

Funny and relaxing: highHeartbreak 5.2/10, sensitive contentPsychological stress 4.5/10, sensitive content

Where to Watch
My Friend's Little Sister Has It In for Me!Overall score 6.4Where to Watch
My Friend's Little Sister Has It In for Me!Overall score 6.4Where to Watch

Overview

Spoiler-free synopsis

For high schooler Akiteru Ooboshi, the whole youthful experience thing—like fun, friendships, and even having a girlfriend—is a complete waste of time. So when his best friend’s sister, Iroha Kohinata, keeps teasing him, Akiteru naturally finds it annoying. She practically lives in his room, she’s always on his bed, she’s just a raging storm of clinginess! Why is she only annoying around him?!

Genres & tags

  • Comedy
  • Romance
  • Slice of Life
  • #HeterosexualRelevance 95%
  • #Love TriangleRelevance 84%
  • #Fake RelationshipRelevance 75%
  • #TsundereRelevance 75%
  • #Female HaremRelevance 71%
  • #ActingRelevance 65%
  • #Otaku CultureRelevance 65%
  • #Software DevelopmentRelevance 65%
  • #WorkRelevance 64%
  • #Male ProtagonistRelevance 63%
  • #Female ProtagonistRelevance 62%
  • #BullyingRelevance 60%
  • #GunsRelevance 53%
  • #WarRelevance 50%
  • #HikikomoriRelevance 40%
  • #MetaRelevance 33%

The percentage after a tag is its relevance to this title. 2 more tags that may contain spoilers are hidden; you can reveal them under Viewing notes.

Ranking positions

Fall 2025 ranking →
Rank in each ranking
RankingOverallSlice of LifeRomanceComedy
Fall 2025#43#15#16#23
2025#43#15#16#23
All-time#217#67#81#104

Details

Format
TV · 12 episodes · 23 min per episode
Status
Finished
Aired
Oct 5, 2025 – Dec 21, 2025
Studio
BLADE
Source
Light novel adaptation
Season
Fall 2025
Categories
RomanceSlice of LifeComedy
Official site
imouza-animation.com (opens in a new window)

Where to WatchOfficial platforms

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Viewing region
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Mainland China: no confirmed streaming page yet.

South Korea: no confirmed streaming page yet.

Philippines: no confirmed streaming page yet.

Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window) · bangumi-data (source page, opens in a new window)
Sources: bangumi-data (source page, opens in a new window)
Sources: bangumi-data (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window) · bangumi-data (source page, opens in a new window)
Sources: bangumi-data (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
Sources: TMDB · JustWatch (source page, opens in a new window)
    Other regions & licensing details

    Licensors

    Region not stated Crunchyroll (title page, opens in a new window)Sources: Wikipedia (source page, opens in a new window)

    Prices & details for all regions

    Official, licensed options only; the platform's page is what counts. Every row cites its source · checked Sep 26, 2026

    What people sayPublic comments from other sites

    AI sentiment analysis

    Sentiment score5.4/10

    Positive22%

    • Very positive 0
    • Positive 9
    • Mixed 11
    • Negative 18
    • Very negative 3

    41 comments analyzed: Bangumi 40 · AniList 1

    English audience score 6.3 · 44,705 samples

    • Very negativeAuthor's score 0.548 found this helpful

      My Friend's Little Sister Has It In for Me! has it in for me In the early 2000s, prominent cultural critic Hiroki Azuma observed that the…

      rrakkuAniListOriginal (AniList, opens in a new window)

    Mood & content

    Source: Derived from community tagsConfidence: low (45%)Updated Sep 24, 2026

    0 = barely any, 10 = very pronounced. Values measure how much, not how good, and different viewers feel the same show differently. “No data yet” means the item hasn't been assessed yet, not that it's absent.

    Mood

    • Light
    • Exciting
    • Heavy

    Funny and relaxing: high

    Light

    • Relaxing6.0 / 10, levelHigh. Easy to watch, low effort
    • HealingNo data yet. Gentle and comforting
    • Funny6.5 / 10, levelHigh. Density of laughs
    • HeartwarmingNo data yet. Warmth from relationships

    Exciting

    • HypeNo data yet. Adrenaline and excitement
    • TenseNo data yet. Suspense and tension

    Heavy

    • Oppressive4.2 / 10, levelModerate. Heavy, stifling atmosphere
    • Dark4.1 / 10, levelModerate. Darkness of setting and themes
    • SadNo data yet. Share of sad moments
    • BleakNo data yet. Likelihood of a lingering low mood
    Emotional intensityNo data yet. How strongly it moves you, either way

    Emotional intensity measures how strong the ups and downs are, happy or sad.

    Content

    Higher = more of it

    Themes

    • Action5.0

      Moderate (5.0 / 10). Share of fights and action

    • Romance7.0

      High (7.0 / 10). Weight of romance plotlines

    • Slice of life7.0

      High (7.0 / 10). Share of everyday-life episodes

    • Harem6.1

      High (6.1 / 10). Harem dynamics around the lead

    Sensitive content· may be upsetting; judge by your own comfort level

    • Heartbreak5.2

      Moderate (5.2 / 10). Deliberately heart-wrenching arcs

    • Psychological stress4.5

      Moderate (4.5 / 10). Mental torment and anxiety

    • Violence4.2

      Moderate (4.2 / 10). Intensity of violence

    • Character death3.9

      Low (3.9 / 10). Likelihood of major character deaths

    • Fan service

      No data yet. Suggestive shots and fan service

    • Gore

      No data yet. Blood and graphic injury

    • Horror

      No data yet. Scares and horror

    • Betrayal

      No data yet. Betrayal plotlines

    Style

    • ComplexityNo data yet

      (0 = Easy to follow, 10 = Mind-bending). Plot complexity and density

    • Pacing3.5

      (0 = Slow burn, 10 = Fast-paced). 0 = slow burn, 10 = fast-paced

    • World-buildingNo data yet

      (0 = Simple, 10 = Vast and deep). Depth of the setting

    Viewing notes

    Spoiler-free by default

    No spoiler-free viewing notes yet.

    Ratings

    Updated Oct 7, 2026, 06:36About scores
    Overall score

    Overall score 6.4/10

    Score breakdown

    • Site scores6.4378%Consensus of 46.9K site votes (calibrated to one scale and shrunk toward the global baseline by vote count)
    • Fan sentiment6.3022%41 comments, average 5.05 (the sentiment score shown, 5.4, is also shrunk toward neutral), calibrated against comparable titles to 6.30
    • CommunityNot counted0%No ratings yet (each rating counts as one vote)

    Site scores

    Raw → calibrated to one scale
    Site scores: raw score, votes, calibrated score
    SiteRaw scoreVotesCalibrated
    AniList (external link, opens in a new window)Reference site64/1008,957 votes6.4
    MyAnimeList (external link, opens in a new window)Calibrated to the AniList scale6.5/1035.7K votes6.2
    Bangumi (external link, opens in a new window)Calibrated to the AniList scale5.6/102,200 votes6.8
    bilibiliNo data——Not counted