Synopsis

Kirino Kousaka embodies the ideal student with equally entrancing looks. Her grades are near perfect, and to cover her personal expenses, she works as a professional model alongside her best friend Ayase Aragaki, who abhors liars and all things otaku. But what Ayase doesn't know is that Kirino harbors a deep, entrenched secret that will soon be brought to light. At home one day, Kyousuke, Kirino's perfectly average brother, stumbles upon an erotic game that belongs to none other than his seemingly flawless little sister. With her reputation at stake, Kirino places a gag order on her sibling while simultaneously introducing him to the world of eroge and anime. Through Kirino, Kyousuke encounters the gothic lolita Ruri Gokou and the bespectacled otaku Saori Makishima, thus jump-starting an entirely new lifestyle. But as he becomes more and more involved in his little sister's secret life, it becomes that much harder to keep under wraps. [Written by MAL Rewrite]

Episodes

12 episodes
  1. 12 There's No Way My Little Sister's Life Counseling Can End Like This (Good End) 俺の妹の人生相談がこれで終わるわけがない GOODEND 19 Dec 2010
  2. 11 There's No Way My Little Sister Can Be a Maid 俺の妹がこんなにメイドなわけがない 12 Dec 2010
  3. 10 There's No Way My Little Sister Can Cosplay Like This 俺の妹がこんなにコスプレなわけがない 5 Dec 2010
  4. 9 There's No Way My Little Sister Can Play Eroge Like This 俺の妹がこんなにエロゲー三昧なわけがない 28 Nov 2010
  5. 8 There's No Way My Little Sister Could Get an Anime 俺の妹がこんなにアニメ化なわけがない 21 Nov 2010
  6. 7 There's No Way My Little Sister Could Write a Novel 俺の妹がこんなに小説家なわけがない 14 Nov 2010
  7. 6 There's No Way My Childhood Friend Can Be This Cute 俺の幼馴染みがこんなに可愛いわけがない 7 Nov 2010
  8. 5 There's No Way My Little Sister's Best Friend Can Be This... 俺の妹の親友がこんなに××なわけがない 31 Oct 2010
  9. 4 There's No Way My Little Sister Would Go to Summer Comiket 俺の妹が夏コミとか行くわけがない 24 Oct 2010
  10. 3 There's No Way My Little Sister Can Be This Cute 俺の妹がこんなに可愛いわけがない 17 Oct 2010
  11. 2 There's No Way I'd Go to an IRL Meetup with My Sister 俺が妹とオフ会に行くわけがない 10 Oct 2010
  12. 1 There's No Way I Could Love My Sister 俺が妹と恋をするわけがない 3 Oct 2010

Characters & Staff

Akagi, Kouhei
Supporting
Junji Majima (Japanese)
Evans, Bridget
Supporting
Misaki Kuno (Japanese)
Gokou, Hinata
Supporting
Kana Hanazawa (Japanese)
Hoshino, Kurara
Supporting
Yukari Tamura (Japanese)
Iori, Setsuna Fate
Supporting
Shizuka Itou (Japanese)
Miyabi
Supporting
Tomoko Akiya
Rinko
Supporting
Hiromi Igarashi (Japanese)
Tamura, Grandfather
Supporting
Shouto Kashii (Japanese)
Tamura, Grandmother
Supporting
Kaoru Katakai
Tamura, Iwao
Supporting
Hiromi Ootsuda

Information

Japanese 俺の妹がこんなに可愛いわけがない
Studios AIC Build
Source Light novel
Licensors Aniplex of America
Rating 6.9
Broadcast Sundays at 23:30 (JST)
Aired 03 Oct 2010 – 19 Dec 2010
Synonyms My Little Sister Can't Be This Cute

Last updated: 04 Sep 2026