A Closed Room With Six Classmates, All Girls Except Me. I Can’t Get Out Unless Something Happens

Kasamoto, a student, suddenly finds himself locked in a white room. In the same room are five girls from his class, all beautiful girls. Perplexed, a mysterious message appears before them. It says that they cannot leave the room unless they have s*x. In this mysterious situation, an awkward atmosphere flows between Kasamoto, the only boy in the room, and the five girls. A long time passes with nothing happening, and they begin to feel impatient. Then Fujiwara Yui, the class representative, makes a suggestion.