판타지 폭발 : 내 의붓여동생이 알몸으로 방황하고 있어, 볼 곳을 찾을 수 없어...! 다카라다 모나미

All the scenes are nude, except for the sex scenes, which are "pre-pasted" with as little mosaic as possible. You can see the tomboyish step-sister's daily life at home. Why? Because she is a "naked person", you can see everything you want to see. There's cleaning, cooking, exercising, sex with her boyfriend, fantasy foursomes, and much more.