My niece, who I met again after 10 years, becomes a sexy and cute gal and seduces me! She gets chased and cums in a cowgirl position.

When I lived in my parents' house in the countryside, I used to play with my niece, Luna. It's been 10 years since then. When I left my parents' house and lived alone in Tokyo, I asked for advice from him, Luna called me out. But I never thought that would happen...