10 epsEpisodes10 episodes · 1–10 free here
Free on Back'n'Time
The story
Quick answer: 10 episodes, English original audio, and episodes 1–10 play right here tonight.
Her fiancé vanishes. Her stepsister locks her in a basement, stealing her genius for three years. When he returns, they tell him she's dead, a suicide, her body donated to science.
But the truth is a live craniotomy. As the drill descends, he smashes through the doors. Can he stop the blade before it proves she was alive all along?
- Episodes
- 10
- Language
- English
- Free here
- Episodes 1–10
More like thisSame energy, different night
See all
Questions people ask
How many episodes are there in My Sister Wants My Brain OPEN!?
My Sister Wants My Brain OPEN! has 10 episodes in total. Short dramas run about one to two minutes an episode, so it is an easy one-sitting binge. Episodes 1–10 play right here on Back'n'Time.
Can I watch My Sister Wants My Brain OPEN! for free?
Yes — the first 10 episodes are free to watch on this page, no account and no sign-up.
What happens after episode 10?
Tap episode 11, or any tile with a lock on it, and we hand you over to the official app at that episode. If the app isn't installed yet, you'll land on its store page first. We don't host the locked episodes and we never ask for payment details.
What's My Sister Wants My Brain OPEN! about?
The story section above has the setup without spoilers past episode 10.
What language is My Sister Wants My Brain OPEN! in?
The audio is English. It was added to Back'n'Time on Oct 13, 2026.
Episode 11 continues in the app
You've watched the free part. My Sister Wants My Brain OPEN! carries on in the official app — we'll open it at this episode.
Continue in the official appKeep watching 1–10