Change 123

Change 123 (ちぇんじ123, Chenji Hi-Fu-Mi?) is a manga series written by Iku Sakaguchi and illustrated by Shiuri Iwasawa. This action-comedy follows Motoko Gettou, a normal female high school student, with a not so normal secret. When she was a child she was trained by her three martial artist fathers. Subjected to excessive physical and mental training, Motoko developed three distinct split-personalities known as Hibiki, Fujiko, and Mikiri. Collectively they refer to themselves as HiFuMi. Each individually skilled gained a mastery in combat skills learned from each of her fathers. As Motoko tries to live a normal high-school life she only seems to find herself in the most awkward situations, courtesy of HiFuMi.

Change 123 was published in Akita Shoten's shōnen magazine Champion Red from June 2005 to June 2010. A total of 12 tankōbon chapter-collection volumes were published in Japan from September 20, 2005 to July 5, 2010. In addition, a drama CD based on the manga has been released.