Sorry, guys! During system maintenance, some functions like comment are unavailable.

I Became My Idol’s Sister, So I’ll Be a Villainess to Keep My Brother.

Ongoing    RSS
SETO Akira , , ITSUKA Nukumori 2026 released.
Drama / Fantasy / Romance / Shoujo
Oshi no Imouto ni Tensei shite Shimatta no de, Saikyou no Akujo ni Natte Onii-sama wo Dokusen suru Koto ni Itashimasu / 推しの妹に転生してしまったので、最凶の悪女になってお兄様を独占することにいたします
Ch.12 new
Ch.11 new
Ch.10 new
 8.4
97 voted
54.6%
24.7%
11.3%
4.1%
5.2%
rate:

Summary

Amamiya Nagisa was very much in love with the evil marquis Neun, a character from her favourite light novel. On the verge of her death, what awaited her on the other side wasn't oblivion, but being reincarnated into Neun's younger sister Frau! They might not be related by blood, but in the world of the novel, love between siblings is horribly taboo. Unable to bear the thought of anyone else having her beloved Neun, she will become the villainess Frau, tear down all his romance flags, and give them to him herself!

Photos about this manga (All)

Other manga by the same author(s)

not found...

Chapters(12)

Ch.12 new

Apr 24, 2026

Ch.11 new

Apr 24, 2026

Ch.10 new

Apr 24, 2026

Ch.9

Mar 28, 2026

Ch.8

Mar 28, 2026

Ch.7

Mar 28, 2026

Ch.6

Feb 16, 2026

Ch.5

Feb 16, 2026

Ch.4

Feb 16, 2026

Ch.3

Feb 16, 2026

Ch.2

Feb 16, 2026

Ch.1

Feb 16, 2026
...
click to show all of the chapters

Topics

People are sharing things

Do you guys prefer dub or sub?
i prefer watching anything in the ORIGINAL voice, bc that's what i feel their OG voices wo...
Friendship and boundaries
Uhm, no offense but if he has mental health issues it’s not really his fault if he’s n...
Friendship and boundaries
Is it smart to meet up and begin talking again with a friend who has ghosted me three time...
Do you guys prefer dub or sub?
Sub, I like listening to the characters' original voice tones, I switch when an anime has ...
Do you guys prefer dub or sub?
Sub tops dub any day but AOT and Death Note's dub version are peak asl

People are doing

did read yaoi in class

discussed it openly too. I believe all media consumed should also be shared and discussed in groups

2 hours
did read yaoi in class

Just like with any romance genre

6 hours
want to do pegging a dude

worthy side quest

6 hours

These lists have this manga