Nene Sakura is a caring older sister who looks after her younger brother. One day, a mysterious note arrives at the landlord's house in their apartment complex. It reads: "Sakura from Room 301 is renting out her pussy." When the landlord checks the room, he finds Nene bound and asleep with her hands restrained. At that moment, her brother whispers, "It's okay. In exchange, we won't have to pay rent..." Encouraged, the landlord assaults Nene and forces creampie sex on her. But this "rental arrangement" is just the beginning...