Nanami, a cute little sister who is embarrassed to go out in public, but with her favorite brother, she wears a cosplay costume that she recently started and gets excited. The photo session starts on her brother's smartphone, but her brother inflates her crotch while shooting with the intention of taking naughty photos of Nanami. 'Isn't that a little funny?' Nanami-chan poses as her brother says. Gradually, it became a lascivious photo session, and my brother's Ji ● Po was twisted into my mouth, and I was raped by an inexperienced Ma ● Ko, and I ended up becoming a meat masturbator.