The second installment of the mommy Marina Shiraishi, is a two-day, one-night affair trip to a hot spring, kept secret from her husband and children. Freed from her everyday life, she smiles and shows her true face. However, the unfaithful feelings hidden behind it make her burn with passion, and she moans and gets wilder than she has ever shown to her husband! Today is the day of the motherly hot spring trip, where mommy becomes a female and gets wild.