Oyako no Himitsu ~Tsuma ni Ienai Oyako no Kankei~
|Title||Oyako no Himitsu ~Tsuma ni Ienai Oyako no Kankei~|
|Original title||父娘の秘密 ～妻に言えない親子の関係～|
|Aliases||Parent and Child's Secret|
|Publishers|| WORLD PG & Monogram|
It's Ryoutaro's daughter Risa's birthday. He buys her a gift from a department store but she seems more distant and aloof than ever. He wakes up to find himself completely enveloped in his daughter's vagina. She's been waiting for her birthday to give her virginity to him and finding him asleep was the perfect opportunity.