Joy is the deuteragonist of the Christian anime series Superbook. Her last name is unknown. She is a very close friend of Christopher Peeper to the point where she plans on marrying him in the future, as noted in various episodes of both the first and second seasons of Superbook. She is voiced by Sonia Owen, who also voiced Christopher's mother, in both seasons of Superbook.In the original Japanese version, Joy's name is Azusa Yamato. She was voiced by Katsue Miwa in the first Superbook season ("Anime Oyako Gekijou") and Kumiko Takizawa in the second season ("Pasokon Toraberu Tanteidan").