The long-awaited sixth installment! Mizuki Nagase, who appeared this time, has even sharper muscles than all the other muscle MILFs. Her abdominal muscles, back muscles, and biceps have been trained every day, she has the grip strength to crush an apple with one hand, and she runs 10 kilometers a day, so her soleus muscles are impressive! She also has a sensitive body, and you must see her climax with her abdominal muscles trembling!