Sister's Sweet Lips 2: Painful Breath (2005)

Sinopsis

Yoichiro, who had an affair with his younger sister, Wakana, has been living apart so as not to make the same mistake again. Yoichiro works as a gravure photographer’s assistant, but his photography skills are not improving. So he decided to use Wakana as a model and submit it to the competition. The two meet again after a long time and open the forbidden door again.