From a large number of online applicants, an amateur man was chosen to spend a secret night with Utagawa Yūri in an urban city hotel, following the simple rule of 'being able to spend the entire night with an exceptionally beautiful woman until the sunrise.' Utagawa Yūri herself had assumed, 'If I could enjoy it thoroughly about three times...' but was surprised at the beginning by an unexpectedly persistent erection that did not wane even after repeated ejaculations, truly a prodigious male member. Yet, feeling joy as a woman, they both experienced multiple orgasms and excitement together...
