I visited my cousin's house for the first time in five years to tutor her younger daughter ahead of an exam. The second daughter, Natsume-chan, had grown quite mature. While teaching her, she started seducing me with a strange allure. Although I thought having sex with a relative was wrong, the aggressive Natsume-chan pushed me into it, and we were caught by her sisters! Expecting to be scolded, but instead, the chain reaction of sexual magic! One after another, beautiful 'cousins' and the dream of the 'sister bowl'!!
