Iori Kogawa is a beautiful stepsister who is jealous of her half-brother. He knew that Iori never woke up at night, so he took a flashlight and went into her room in the middle of the night. At this time, he was free to make love to Iori, only she was motionless, but the water was still flowing. He ejaculated into Iori many times, making her very confused the next morning but unable to explain. She told her mom about her weird dreams, but they weren't dreams, she was actually being fucked!