My Imouto Koakuma na A Cup – Episode 1

Every tranquil morning at the Utsumi household is abruptly interrupted when sister Yuki constantly yells at brother Takashi. It's no secret that his relationship with step-sis Miyu isn't getting any better, which gives him a constant headache. Despite behaving like an angel around their parents, behind closed doors she transforms into the devil herself.

One fine day, Takashi accidentally brings up Miyu's sensitive topic about her chest size. Losing his cool, he gets chewed out by her big time! To stop the fuming Miyu, they end up bumping heads and falling down together. As their faces are inches apart in this awkward situation, poor Takashi can't help but get turned on by Miyu's cute facial features, the warmth of that slender bod, along with her intoxicating scent that only a horny teenage girl can have!