Asuna Karino
Asuna Karino (仮野 明日那 Karino Asuna) is a registered nurse at Seito University Hospital and a personnel from the Ministry of Health. In reality, "Asuna" is a guise for her true identity known as Poppi Pipopapo (ポッピーピポパポ Poppī Pipopapo), a benevolent Bugster based on the character with the same name from DoReMiFa Beat, who acts as the "navigator" for the Kamen Riders.