Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Natsuko Aso (born August 6, 1990 in Tokyo) is a Japanese actress and singer. Aso began her career playing the role of Chisame in the Negima drama and as a member of the band pRythme. Later, she has appeared in a number of TV dramas and began a solo music career. Her single "Perfect Area Complete" was chosen as the opening song for the Baka to Test to Shōkanjū anime. She currently presents the second season of Japan In Motion, a show broadcasted on the French TV Nolife.