Gumi Megpoid is a fictional character and a vocal synthesizer software developed by Internet Co., Ltd. She is part of the VOCALOID series and is known for her distinctive, realistic voice. Gumi is portrayed as a green-haired girl with a cheerful and energetic personality. In the series, she plays the role of a virtual singer who performs a wide range of music genres. Her character allows users to create songs by inputting lyrics and melodies, making her a popular choice among music producers and fans of virtual idols.