Kanojo no Imouto to Kiss wo Shita.
I Kissed My Girlfriend's Little Sister?!
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Kanojo no Imouto to Kiss wo Shita.

Alternative Titles

Synonyms: I Kissed My Girlfriend's Little Sister♥
Japanese: カノジョの妹とキスをした。
English: I Kissed My Girlfriend's Little Sister?!
More titles


Volumes: 4
Chapters: 50
Status: Finished
Published: Apr 14, 2020 to Sep 14, 2022
Genres: Comedy Comedy, Romance Romance
Serialization: None
Authors: Misora, Riku (Story), Saba, Mizore (Art)


Score: 7.001 (scored by 267267 users)
1 indicates a weighted score.
Ranked: #87852
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #10749
Members: 1,615
Favorites: 37


Ranked #8785Popularity #10749Members 1,615
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Volumes: /4
Chapters: /50


"We'd better not let my sis see us like this..."

My girlfriend's younger twin sister has somehow become my new stepsister?!

"You sound really nervous right now. You're just so adorable, bro."

It's been a month since I've started dating Haruka, my first ever girlfriend. We even finally reached first base today—holding hands!

"What a bad boyfriend you are. To think you're daydreaming about your little sister while you’re holding hands with your girlfriend, of all people!"

Today's also special for a different reason—my dad's getting remarried, which means I get a new stepsister. Her name is Shigure, and she's pretty much the spitting image of Haruka. That's no surprise though, given that she's actually Haruka's long-lost twin sister! Due to family circumstances, they were split up at birth.

"It's okay, bro. I look exactly like sis does, right down to... well, you know. I don't blame you at all."

Her presence adds a new, twisted form of love that tangles itself into our protagonist's passionate love life! He can't possibly tell his girlfriend what's been going on!

(Source: Tentai Books)


Kanojo no Imouto to Kiss wo Shita. has been published digitally in English as I Kissed my Girlfriend’s Little Sister?! by Tentai Books since March 21, 2022, and in print since June 15, 2022.



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Recent Forum Discussion

Volume 3 will be released on September 14, 2021
Syureria - Sep 13, 2021
0 repliesby Syureria »»
Sep 13, 2021 7:59 PM
Poll: Kanojo no Imouto to Kiss shita. Volume 1 Discussion
Syureria - Jan 2, 2021
3 repliesby Haru_ichi »»
May 8, 2021 3:17 AM
Poll: Kanojo no Imouto to Kiss shita. Volume 2 Discussion
Syureria - Mar 7, 2021
0 repliesby Syureria »»
Mar 7, 2021 3:29 AM