My younger sister's life was about to expire, leaving me with no reason left to live.
There was no meaning behind an existence that only knew how to dedicate itself to another. Thus, even to the end, I decided to accompany her in death.
But when I opened my eyes, I found out that I was reincarnated into the book that I've once read.
I became the same villainess that was predestined to an ill-fated ending.
Does everyone love a cute and innocent little sister? Do you like your sister to love you as a big brother?
Do you like a sister who will ruined your school life, break up with your girlfriend and even kill your lover?
This is a man&