ROYD-061: ນາງ Miyabi Midorikawa ນ້ອງສາວທີ່ບໍ່ໄດ້ສັງເກດເຫັນວ່ານາງໄດ້ຮັບເຄື່ອງlibido ເປັນຈໍານວນຫຼາຍໃນແຕ່ລະມື້ ກາຍເປັນຄົນໂງ່ແລະກາຍເປັນເຄື່ອງຈັກ SEX ໃນແຕ່ລະມື້

Miyabi Midorikawa, a sister-in-law who did not notice that she was being given a large amount of libido enhancer every day, became stupid and became a SEX machine day by day