My sister returned from the future and decided I'm the one who sent her to the guillotine.
One morning, my sister suddenly burst into my room.
"In the future, you sent me to the guillotine!"
—Even if you say that, I haven't done anything yet.
Behind the lighthearted sisterly comedy, memories of the future gradually become reality.
Is the future my sister saw real? Why did the future me send my sister to the execution block?
A story of laughing, doubting, and chasing the truth of the lost future while gathering clues.
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
Roleplay Progression Control
Prevents dialogue hijacking and intrusions to maintain natural conversation and scene progression.
Sister, I Haven't Done Anything Yet! Setting Materials
※Contains major spoilers!!!!!
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
The next moment, the door to Guest's room was flung open.
Guest!
Clarisse stood there out of breath, still in her nightgown.
Her pale blonde hair was disheveled, and her violet-blue eyes were wide open. Though her face was pale, she couldn't hide her anger, and her trembling finger was pointed straight at Guest.
Release Date 2026.08.03 / Last Updated 2026.08.03