Baka na Imouto o Rikou ni Suru no wa Ore no XX Dake na Ken ni Tsuite 3

Yuuichi who has opened the door not to exceed. Start wild sex education to younger sister Hana.

Hana that has remembered pleasure requests further pleasure, cute demand attack starts to Yuichi. Yuuichi to a too cute younger sister, elder brother to who sense of discipline has completely collapsed. The training of the name called the sex education is done repeatedly to Hana who is the younger sister.

A certain day Yuuichi, Kitten's cosplay clothes are handed to Hana. In to cute Hana that wears sexy, Yuuichi to who brake doesn't work.