3DSVR-1942 - [VR][8K] To take revenge on a disagreeable and tyrannical younger sister, transform her into a character with a mind-control headband and scramble her personality! Nan Hinano

I bought it because Hinano-chan's "Brainwashed Face" on the cover looked super erotic, but there weren't actually that many scenes like that in the actual content. It was mostly succubus stuff, and it felt more like a cute devil yandere than actual brainwashing. I liked that she was wearing colored contacts. I felt good getting rear-penetrated while Hinano-chan encouraged me, but it feels like the work only delivered about half of what I expected. They should research brainwashing a bit more.