Bitches R30: ~ Bitches mired in lust ~ / Niku Mesu R30: Nikuyoku ni Ochita Mesu-tachi The Animation

The protagonist of the hentai is Tsuaruke. He faces a difficult task - he must preserve his virginity until age 30, and only by fulfilling this condition can he take the position of head of the family. However, it is not easy when living with him are the charming stepmother Yuriko and her daughter Rioka.