Reason I Fuck My Niece 6 - Hentai uncle turns niece into a hooker who fucks her dad

Ooki Ryuuji deeply resents his brother thinking that he is the one who should have married his wife. One day he finds a love potion that he has forgotten about. He uses it on his brother's daughter and this starts him down the path to controlling and fucking both his niece and his sister-in-law. His depravity and cruelty grows insatiable over time.