A post was made online saying that anyone who wants to take a mixed-bathing hot spring with two big-breasted AV actresses should bring a red towel as a sign to the hot spring. How many people will actually bring a red towel? Or will they not? This is the real story of the unexpected project. This third installment of the series, which is popular for its thrilling nature, features the dark-skinned, big-breasted gal "Hiyoko" and the white, soft-skinned, big-breasted "Manami"! The Amateur was sandwiched between the two gorgeous breasts and stroked, and the pleasure was so great that he squirted in the hot spring!