In the animated world of Hentai, a lone, horny otaku pays tribute to his favorite Vocaloid, Gumi. With just his hand and a vivid imagination, he strokes his throbbing cock to the rhythm of her melodic voice. The soloboy's room fills with the sounds of his ragged breathing and the squelching of his palm meeting his pulsating member. His eyes are locked onto his computer screen, Gumi's digital form singing seductively, her virtual body undulating in ways that only exist in his fantasy. The tension builds, his balls tighten, and with a final, guttural moan, he unleashes a torrent of cum, painting his desk with his tribute to the enchanting Vocaloid.