Ai to wa Keshite Koukai Shinaikoto (1996)

Ai to wa Keshite Koukai Shinaikoto 1996 / 愛とは決して後悔しないこと 1996 / Love is Never to Regret ,

This is a drama of forbidden love between a sister and her brother. Complicated by the dark secret of the sister's birth, and the brother's affections for another lover, the story is of the deep search in our times for pure love, a love which is given without hope of return.