Kana lives with her younger sister Nagisa and Nagisa's husband Keita.They were originally living with Nagisa, but when they got married, Keita rolled in.He wasn't particularly angry, and instead he was secretly happy that he had a cute little brother.One day, Kana got home late for work and was dozing off on the last train on the way home, and when she saw Keita, peering into Kana's lower body and thrust into her cock...Kana is surprised, but at the same time, she feels aroused and begins to roll up her skirt and seduce her panties.
