Seeking Looking for some games/hentai/manga with brainwashing but the victim knew that they're being brainwashed and they can't do anything about it

[Alfi7643]

So, I just read a webnovel called Isekai Apocalypse Mynoghra.

In there, one of mc friend got brainwashed and being forced to see her old friends as her enemies and her enemies as her new friends.

But she didn't try to fix everything back to how it used to be and she even accepted that brainwash order because her brain is now under the control of her new master.

So everytimes she encountered her former friends, she's going to kill them without mercy.

For me that is hot!
so does anyone's know any games, hentai, or even a normal manga with that plot?

 

[Pretentious Goblin]

You should like this one then. And maybe this.