Not to be confused with Kai Hiwatari from the original series. Kai Nangoku (南国カイ, Nangoku Kai) is a character that only appears in the Beyblade: Metal Fusion - Battle Fortress video game. His Beyblade is Hellfire Delphis 145FS.
Beyblade
- Hellfire Delphis 145FS: Kai's Beyblade in Beyblade: Metal Fusion - Battle Fortress.