"Big brother, I want to be an idol..." The brother intended to teach his sister, who dreams of becoming an idol, about the harsh realities of the entertainment industry and make her give up, but her super cute cosplay and innocent, devilish seduction leave him so dry he's practically numb to the load of semen, and he ends up realizing his sister's incredible talent! She loves sex so much that she's super comfortable providing sexual services, and her natural lewdness captivates even the producer, making her perfectly suited for the pillow business! What started as practicing pillow talk with her gradually turns into a passionate encounter where they give in to their instincts and desire each other! His sister was truly born to be an idol... she's sure to be a pillow show leader in the idol world...!