Triggered by a hidden camera in the home, an extremely lewd plot unfolds where the victim is given medication to dull their consciousness and is raped while asleep. The target this time is Lala-chan, a petite and slender beautiful girl with a minimum physique. Her childish and lovely appearance, beautiful skin, and small, adorable buttocks lead to even more perverse pleasure. Without being bound by the fact that they are family, the perpetrator repeatedly inflicts brutal acts like those that occur after school, violently assaulting her. Abusing their position as her older brother, they do as they please, creampie her with a large amount of semen, and indulge in extreme pleasure.