Yoko Usami, known as Yellow Buster, is one of the main protagonists in the Japanese tokusatsu series Tokumei Sentai Go-Busters. She is the energetic and determined member of the Go-Busters team, specializing in agility and reconnaissance. As the youngest member, Yoko often brings a lighthearted spirit but is also highly responsible and courageous in battle. Her bond with her Buddyroid partner, Usada Lettuce, is central to her character, and she plays a crucial role in fighting against the Vaglass organization.