UMAD-094: Si perds 100g per SEXE, rebràs 10.000 iens! Si perds 1 kg, seràs desafiat a 1 milió de iens! Michiru Satsuki

If you lose 100g by SEX, you will receive 10,000 yen! If you lose 1 kg, you will be challenged to 1 million yen! Michiru Satsuki