

TV series
Nakaimo: My Little Sister Is Among Them!
2012, Japanese, on TBS & MBS.
Is insanity hereditary? Shougo Mikadono's beginning to think so, because the terms of his late father's will seem crazy and following them may drive Shougo bonkers as well. Oh, it sounds simple at first: before Shougo can claim his VERY large inheritance, he just has to start attending a certain new school and find a nice girl to marry. It's a little unromantic, but perfectly do-able, right? After all, all the girls seem quite friendly, so all Shougo has to do is find one he has something in common with. Except, and here's the kicker, it turns out that Shougo has WAY too much in common with one of them, because she's actually his long-lost sister! And he has no idea which one she is! Will Shougo meet and court his Miss Right without committing something very morally wrong? Can he find his future bride without slipping into the wrong set of genes? And if his little sister does reveal herself, just how much will be revealed and under what circumstances?
- Seasons
- 1
- Episodes
- 12
- Episode length
- 25 min
- Status
- Ended in 2012
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Where to watch Nakaimo: My Little Sister Is Among Them!
Nakaimo: My Little Sister Is Among Them! isn’t on a subscription OTT platform in India, but you can buy it online.
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Availability in India as of 13 November 2026. Streaming data by JustWatch.
Latest episode
S1 E12: My Sister Was Always Beside Me
Aired 28 September 2012
Seasons 1
Cast & crew
- Arisa NotoMaiko Kotori (voice) · 12 ep
- Rikiya KoyamaKumagoro Mikadono (voice) · 12 ep
- Aya HisakawaKanoko Mikadono (voice) · 12 ep
- Takahiro SakuraiMikadono Shogo (voice) · 12 ep
- Rina HidakaMei Sagara (voice) · 12 ep
- Kaori IshiharaKonoe Tsuruma (voice) · 12 ep
- Asuka OhgameMana Tendou (voice) · 12 ep
- Ayako KawasumiRisa Seri (voice) · 12 ep
- Ayana TaketatsuRinka Kunitachi (voice) · 12 ep
- Yui OguraYuzurina Houshou (voice) · 12 ep
- Ami KoshimizuIkusu Mizutani (voice) · 12 ep
- Ayane SakuraMiyabi Kannagi (voice) · 12 ep
Details
- First aired
- 6 July 2012
- Last aired
- 28 September 2012
- Network
- TBS, MBS, CBC, BS-TBS
- Original title
- この中に1人、妹がいる!
- Language
- Japanese
- Country
- Japan
- Type
- Scripted
- Rated
- TV-MA
Check ratings elsewhere
News & fan talk
What Nakaimo: My Little Sister Is Among Them! is based on
Nakaimo: My Little Sister Is Among Them! is based on Nakaimo – My Sister Is Among Them!, a 2010 light novel series by Hajime Taguchi, published by MF Bunko J.
Light novel series · 2010
Nakaimo – My Sister Is Among Them!
By Hajime Taguchi
Published by MF Bunko J
Source details from Wikidata and TMDB.
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Nakaimo: My Little Sister Is Among Them!: quick answers
Is Nakaimo: My Little Sister Is Among Them! worth watching?
Nakaimo: My Little Sister Is Among Them! doesn’t have enough ratings for a verdict yet.
How many seasons of Nakaimo: My Little Sister Is Among Them! are there?
Nakaimo: My Little Sister Is Among Them! has 1 season and 12 episodes, about 25 minutes each.
Is Nakaimo: My Little Sister Is Among Them! finished?
Yes. Nakaimo: My Little Sister Is Among Them! ended in 2012, so you can watch the whole story.
Which OTT platform is Nakaimo: My Little Sister Is Among Them! on?
Nakaimo: My Little Sister Is Among Them! isn’t on a subscription OTT platform in India, but you can buy it online. (Checked 13 November 2026.)
Nakaimo: My Little Sister Is Among Them! parents guide: is it suitable for kids?
Nakaimo: My Little Sister Is Among Them! is rated TV-MA. Check the rating guidance before watching with young children.
What shows are like Nakaimo: My Little Sister Is Among Them!?
If you liked Nakaimo: My Little Sister Is Among Them!, try Please Twins!, Ai Yori Aoshi, Love Flops.
What is Nakaimo: My Little Sister Is Among Them! based on?
Nakaimo: My Little Sister Is Among Them! is based on Nakaimo – My Sister Is Among Them!, a 2010 light novel series by Hajime Taguchi, published by MF Bunko J.

