This time, the Mirror Van's hot spring is Japan's number one hot spring town, Hakone Yumoto!! We call out to Amateur who are visiting the hot spring and have them bathe in the see-through lotion hot spring that we have specially installed inside the MM Van! Of course, this time too, Ari is also a live change into embarrassing swimsuits! Nine carefully selected swimsuits will arouse the girls' sense of shame!! It's certain that the slippery, almost naked Amateur will become erotic!