Ultra Maniac is a Japanese manga series written by Wataru Yoshizumi. The romantic comedy series features 8th grader Ayu Tateishi, a tennis club member, and her transfer student friend, Nina Sakura, who is actually a trainee witch from the magical kingdom. It premiered in Shueisha's Ribon manga magazine in February 2001 and ran until January 2004. It was also published in five collected volumes by Shueisha. Viz Media licensed and released an English translation of the series in North America. With Miho Shimogasa by designing the characters and Animation Production by Ashi Productions.

Ribon is a monthly Japanese shōjo manga magazine published by Shueisha on the third of each month. First issued in August 1955, its rivals are Nakayoshi and Ciao. It is one of the best-selling shōjo manga magazines, having sold over 590 million copies since 1978. Its circulation was in the millions between 1987 and 2001, peaking at 2.3 million in 1994. In 2009, the magazine's circulation was 274,167. In 2010, the circulation dropped to 243,334.