The stepchildren of the remarried partner are a beautiful older sister, Yuika, and a cute younger sister, Hikaru. 'I want to grope their breasts and asses somehow…!' The stepfather's mind was full of lewd desires. One day, he learns about the existence of the "Brainwashing Maker." It is an app that can rewrite the brain of the target and brainwash them. Even while harboring doubts, the sisters fight over their stepfather's dick! They fuck each other! Cum inside repeatedly! The brains and pussies of the brainwashed sisters are treated like toys...
