OBA-305 The allure of the housekeeper's panty flash by Ayumi Narita

At the request of her father, who is on an overseas assignment, Ayumi takes care of her son, Kyosuke, who is aiming to become a professional shogi player, as a housekeeper. Kyosuke, who had no time until the pro-am match, practiced around the clock without eating or sleeping, and as a result lost his concentration. “At this rate, I won’t be able to transfer to the pros again this year. One day, Ayumi cleans up while wearing a short skirt while Kyosuke is practicing. And when Kyosuke witnesses Ayumi's flickering panties, he regains the concentration he should have lost...