The Z Warriors discover an unopenable music box and are told to open it with the Dragon Balls. The contents turn out to be a warrior named Tapion who had sealed himself inside along with a monster called Hildegarn. Goku must now perfect a new technique to defeat the evil monster.

Tokyo, 2014: a city balancing on the razor's edge between financial prosperity and seismic destruction. It is a place where the lights are bright, the stakes are high, and where the threat of imminent destruction breeds crime like a disease. But for Gokuu Furinji, ex-cop and super-powered private detective, crime is money...