Takeshi, who came to Tokyo to take the university entrance exam, stayed at his brother's house in Tokyo to take the exam. He met his brother's wife Maria for the first time in a long time, who is a gym instructor and is attractive with her toned body and G-cup breasts. Takeshi, who was aroused by his sister-in-law, thought about how he could have sex with her, so he bought an aphrodisiac on the Internet and put it in her protein shake. Maria, who was exercising in the living room, drank the aphrodisiac-containing protein shake while exercising. Maria's body gradually began to heat up due to the aphrodisiac effect, and she instinctively touched her crotch and masturbated. Takeshi, who was watching her, attacked her, but she herself wanted his cock... Gangiriri NTR, Maria Chihaya available! Devour the beautiful, well-trained body of a married gym trainer!