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

In the Japanese web novel 'A Closed Room With Six Classmates, All Girls Except Me. I Can’t Get Out Unless Something Happens,' Kasamoto, a student, finds himself trapped in a white room with five beautiful girls from his class. A mysterious message declares that they can only escape by engaging in a certain activity. As tension builds in the room, the class representative proposes a solution amidst the drama, harem dynamics, and mystery that unfold in this adult-themed school life story filled with themes of confinement and male protagonist involvement.