Hisashi and Sawa have just started dating, but they haven't yet fully opened up to each other. One day, they miss the last train on a date, and Sawa, in a drunken state, invites him to stay at a love hotel. Sawa is curious about unknown sex toys, while Hisashi is strangely cool. Sawa is depressed by the difference in their attitudes, but inspired by the how-to guide he found in the love hotel, he makes a bold move, and Hisashi becomes immersed in a new pleasure...!