Teto is a virtual singer and character created by the Japanese company AHS. She is part of the Vocaloid software family, which allows users to synthesize singing by typing in lyrics and melodies. Teto is known for her distinct voice and is often depicted with long, light blue hair and a cheerful personality. Originally released as a fan-made character, Teto gained popularity and was later officially recognized. She is often used in various music genres and has a dedicated fanbase that creates songs, artwork, and animations featuring her. Teto represents the creativity and collaboration within the Vocaloid community.