One day, suddenly, my younger sister from another mother, Natsuki, shows up at my place. She had a fight with her mom and ran away from home, apparently deciding to take refuge at my house without even consulting me… From that day on, Natsuki lounges around in revealing clothes. Her thick thighs and ample breasts, which are prominent even through clothing. This insolent younger sister who never leaves my place doesn't pay rent or living expenses. When I tried to lecture her about it, she said, "Can't I pay with my body?" and offered her breasts… Her massive tits blew away my reason, and I couldn't stop at just groping them; every day was a paizuri frenzy! Collecting rent with her tits! However, one day, Natsuki's attitude started to change…
