In this animated special, the members of the Light Music Club from K-ON find themselves in a unique situation. As they rehearse and perform their favorite songs, the intense rhythm and melody of their music starts to have an unexpected effect on them. The girls begin to feel a growing heat between their legs, their breaths coming in short gasps as they try to maintain their composure. They can't help but let their hands wander, stroking their bodies to the beat of the music. The room fills with the sound of their moans and the soft thrum of their fingers on their most sensitive spots.