The story and its characters were internationally known and complemented by other media. Thus, besides radio dramas, manga, merchandise, live performances, music publishing, many of the speakers are part of the franchise that lined up for implementation of a new light novel sales records.
The first opening theme is "Koi no Mikuru Densetsu" (The Mikuru Legend of Love), performed by Yuko Goto and the first ending theme is "Hare Hare Yukai" (Sunny Sunny Happiness), performed by Aya Hirano, Minori Chihara and Yuko Goto.