In the dimly lit room, the Vtuber, Kaguya, logs off her stream, but her curiosity piqued by the mysterious, unopened folder named 'Mmd'. Clicking it, she's greeted with a gallery of lewd, holographic avatars engaged in taboo acts. Her heart races, eyes widening as she takes in the graphic, explicit scenes. She finds herself drawn to one featuring her own avatar, a mirror image of herself, engaged in a passionate, kinky encounter with another.