The anime centers around a boy named Kouta Kouka (Kouka Kouta in Japanese name order, an apparent wordplay on Coca-Cola). Kouta strives to be the world's best Bottle King at the Bottle Battles in the virtual Drink World. He comes across his Bottleman partner Colamaru and then wages battles with various rivals.

Mana Hirataas Kōta Kōka (voice)
Hikaru Yuukias Momo Jajjina (voice)
Katsumi Fukuharaas Goemon Ōi (voice)
KENNas Ryō Hokari (voice)
Ryota Iwasakias Hanta Minezaki (voice)
Takaya Kurodaas Suezō Hokari (voice)
Fumiya Imaias Yukiji Muto (voice)
Nobuyuki Hiyamaas Joji Muto (voice)