First Class, Level 1 angel in the manga. She is the person who is the most powerful angel in heaven. She was originally being task to take care of Takashi but instead the task went Ruelle due to taking care of a "god child" in Tibet. She was killed by Isra in full demon form. Her animal form is a white eagle. Prayer Omura is the daughter of Elle and Takeshi in the manga. However, she is not a result of an incest, as she hatched from an angel's egg as a result of an Immaculate Conception. Just she was adopted by Takeshi. Hikari Hoshino is the childhood friend of Takeshi. When she was young, she was always depressed until she met Takeshi who taught her kendo. This made her to become the kendo champion in Japan. Her deadly attack is called "Triple Death Strike". Like Takeshi, she is half-demon whereas her mother is a demon. Michiru Hoshino is Hikari's younger sister. She is a sadist and she enjoys herself by inflicting pain on other. She likes to see her sister suffer from using her new invention. She can turn her drawings into real life by using her demon-like power. Media Manga Happy World! is written and illustrated by Kenjirō Takeshita. It was serialized in Shueisha's Ultra Jump, ending the serialization at 72 chapters. Shueisha published the manga's 11 bound volumes between February 24, 2001 and July 19, 2006. Volume listing Original video animation Directed by Takashi Ikehata, a 3-episode original video animation was created by KSS for Happy World!. The OVA uses two pieces of theme music. by Millio is the opening theme, while by Satomi Hanamura is the ending theme. On August 9, 2002, an animation CD was released for Happy World!, containing both opening and ending themes. The first episode was released on a DVD by Happinet Pictures on December 13, 2002 and on VHS on December 20, 2002. The second episode was released on DVD on March 28, 2003. The third episode was released on DVD on June 27, 2003. Episode listing References External links 2002 anime OVAs Seinen manga Shueisha franchises Shueisha manga