Top icons of the newhalf world, Serina Tachibana and Araki Rena, finally co-star! This time, a special project comes to life: treating both of them to a hot spring trip based on the universe of "We Boys Who Are Girls." However, a shocking twist lies behind the scenes. Guests who arrived earlier are secretly told, "These people are okay to touch," leading to a scenario where, without their knowledge, they are repeatedly groped in a mixed-gender hot spring. As if drawn into a dreamlike alternate world, the two are repeatedly violated by the guests' hands, drenched in abundant semen. With their penises and anuses constantly wet, they endure a fully erect, satisfying hot spring journey over one night and two days!