Yu Yu Hakusho Season 4 Episode 15

In the next match of the tournament, Hiei steps into the ring of battle against his former ally, Mukuro. But Mukuro has already explored the horrors of Hiei’s past and knows his thirst for revenge. Will this give the bizarre, shackled fighter the advantage? As a last result Hiei prepares his ultimate weapon: the Dragon of the Darkness Flame!