Takamine Kiyomaro, a depressed don't-care-about-the-world guy, was suddenly given a little demon named Gash Bell to take care of. Little does he know that Gash is embroiled into an intense fight to see who is the ruler of the demon world. All of the demons have to pick a master on Earth and duke it out with other demons until one survives. Needless to say, Kiyomaro becomes Gash's master, and through their many battles, Kiyomaro learns the importance of friendship and courage.
1: "Kasabuta (カサブタ)" by Hidenori Chiwata (eps 1-50)
2: "Kimi ni Kono Koe ga Todokimasu You ni (君にこの声が 届きますように)" by Takayoshi Tanimoto (eps 51-100)
3: "Mienai Tsubasa (見えない翼)" by Takayoshi Tanimoto (eps 101-150)
Ending Themes
1: "PERSONAL by Aya Ueto" (Episodes 1-30)
2: "STARS ~you don't have to worry about tomorrow~ by KING" (Episodes 31-58)
3: "Tsuyogari by Eri Kitamura" (Episodes 59-75)
4: "Idea by Tsukiko Amano" (Episodes 76-100)
5: "Kyou yori Ashita wa by Echiura" (Episodes 101-125)
6: "★遊FEVER 2005★ by Tomoe Shinohara (Episodes 126-149)
7: "Kasabuta by Hidenori Chiwata" (Episode 150)
