We got to see Hiei and Yusuke's past, now it's time into Kurama's past...
Kurama has been asked to go to Demon World by the third and final Demon Lord, Yomi. It seems that the two demons know each other very well and the two were even friends. A thousand years in the past Yoko Kurama lead a group of demon bandits with Yomi has his second in command. They were a legendary team and nothing was safe from these master thieves. However, after Yomi continued to betray Yoko, an assassin was sent after him. This ended with Yomi's blindness.
Kurama is in Demon World to serve as Yomi's advisor and help him in the future was for the fate and control of Demon World. But how can these two work together when hatred lies between them?
A great episode that really shows us Kurama's past as Yoko!