To address the lack of exercise among AV actresses, SOD delivers a special edition exercise bike with an attached electric massager to the actress's home. This time, it's marin-chan, whose background as a former kindergarten teacher alone is enough to stir up strange excitement. She tries to hold back her orgasm at first, but she can't help herself against her pent-up sexual desire... The electric massager pressing against her vagina and her legs pedaling intertwine in an incredibly erotic way!
