Pulled by the sprightly, pink-robed Botan, Yusuke enters a realm that is not quite normal -- the Spirit World. There, Yusuke meets Koenma, a 700 year-old ruler with the body of a toddler, pacifier and all! But there's no rom for laughs as Koenma gives Yusuke an ordeal to restore his life. Hatching a Spirit Beast!

The oafish demon Gouki is using the stolen Orb of Baast to capture children's souls. If Yusuke doesn't track down and defeat this monster quickly, those souls will become the monster's next meal. But Gouki isn't the only one Yusuke has to worry about when the second thief suddenly appears. His name is Kurama, and to great surprise, he asks Yusuke for a favor...

Kuwabara's body lays broken. Shorin is nowhere to be found. And with Yusuke's energy dwindling every minute, the evil Rando reveals his true and monstrous form. Now, can the injured Yusuke battle the human-hunting demon and close the case? How can he, when Rando has ninety-nine deadly techniques in his arsenal.

Two of the four Saint Beasts are dead -- or so Yusuke and his team believe! But in the chamber of Seiryu, a Beast who can trap his enemies in ice, an unexpected guest arrives. How can two Beasts in one room be stopped? And why is Hiei, a cold-hearted rogue, suddenly beset with emotion?

Suzaku uses The Prism of Seven technique to create seven Suzakus. Not merely copies, each one has independent will and full powers - all aimed at the torture and annihilation of Yusuke.

One giant battle stands in the way of rescuing Yukina. Yusuke and Kuwabara versus the leaders of the demon mercenaries, the immensely powerful and bizarre - Toguro Brothers! What will it take to defeat the freakish duo in a fight where anything goes? Elsewhere, Kurama races to stop Hiei, who is entering Tarukane's stronghold with his own violent agenda!

When he’s ambushed by a loose-cannon competitor, Yusuke learns that even quiet moments on Hanging-Neck Island are dangerous. Meanwhile, Hiei faces the consequences of his deadly dragon attack.

After talking to Kayko, Yusuke is confronted by Botan. She tells him his Spirit Beast will hatch soon. Koenma startles the two and show Yusuke his big egg. Koenma reminds him that the egg will consume every part of him if he was evil. The egg hatches and no one sees where the beast is. They look at Yusuke and they see the beast. It is a small blue bird with big floppy ears. Everyone mocks him. The next day, the team trys to scope out the competition. Team Uraotogi takes care of Team Gokki 6 in two minutes. Only the badly injured Hiei and Kurama watch the fight. Kuwabara tells them to go to Yukina for healing, not knowing she is Hiei's sister. He mentions her quest and Yusuke and Kurama starts mocking Hiei. Then, Team Toguro shows up. Toguro and his younger brother are there, as well as a guy in black with mask (Karasu) and a guy clad in armor (Bui). The crowd gives them praise. Then Yusuke and the Masked Fight get into a fight. She says she would be a better leader than Yusuke.

Hiei continues his struggle against Kuro Momataro, who has just transformed to his second armor of beast, the Phoenix Armor. Kuro decides to show off by transforming into his third, and most powerful armor, the Wolf Armor. Kuro throws his last Steaming Sphere, and he turns into his hideous wolf form. Hiei draws his broken blade, and Kuro laughs, and tells him if his sword didn't work on the first armor, how could it work on the third. Hiei uses the power he stored for his Dragon of the Darkness Flame, and puts into his sword, creating the Sword of the Darkness Flame. Kuro jumps to bite him, and Hiei kills him in midair. Next, it's Ura Urashima vs. Kurama. Ura is a small boy who fights with a fishing pole. He starts swinging it in a circle, and Kurama does the same with his Rose Whip. T

Kuwabara starts his battle against Shishiwakamaru. It's a duel between a sword of energy and a sword of steel.shishi is obviously the more skillful of the two. They battle on and on until Shishi unleashes one of his two special items known as the Cape of No Return. Shishi throws the cape at Kuwabara and it surrounds him. He falls through a dimensional portal into the ring that was used before the semi-finals. He finds Botan, Kayko, Yukina, and his sister there; lost. He leads them to the new ring. Meanwhile, they roll the dice again to decide the fight. It comes up on a free space for Team Uratogi, and the Masked Fighter for Team Urameshi. Hiei is prepared to take her place when she magically shows up behind him and stops him. Shishi is curious about the identity, and cuts the mask. Shishi tries to get them disqualified by saying that they're using the mask to sneak in fighters. But Toguro steps in and the comittee finds nothing wrong. A new chapter in the semi-finals is set to begin.

The members of Team Toguro demonstrate their power in the semifinals by utterly defeating another team with minimal effort.

The tournament finals are set to begin. But the rules state that each team must have five members to compete. With each team having only four fighters, two competitors step up to join with each team no matter what the consequences. Who are the two new fighters and what could they possibly bring to the team?

A disappointing verdict is handed down in the Kurama versus Karasu match, reversing Team urameshi's fortunes in the Finals of the Dark Tournament. Hiei seeks to recover from this setback in the ring with Bui, but will the power lurking beneath Bui's armor be too much for him?

Hiei unleashes his most powerful attack, the Dragon of the Darkness Flame! But Bui is able to turn the Dragon against his master. Will Hiei be swallowed and destroyed by his own power?

Yusuke reveals to Toguro that he has not been fighting at full power and removes the Spirit Cuffs, which reduce his power. Finally, a fully powered Yusuke launches an attack at his nemesis. But Toguro too has powered up to his top level and stares down Yusuke's most powerful Spirit Blast.

With the Dark Tournament at an end, Yusuke must beign to cope with the loss of his best friend at the hands of Toguro. After Sakyo asks Koenma to take his life, the evil billionaire unveils his final evil plan to destroy the entire stadium with everyone still inside!

Searching Mushiyori City, Yusuke's team was quickly steered to the hospital, where a trap awaited. There they encounter the Doctor, a human with immense psychic powers, super strength, feels no pain, and has infected the entire hospital with a deadly virus. To save his friends, will Yusuke be forced to destroy the wretched creature?

Sensui makes his appearance, and battles Yusuke, Kuwabara, and Kurama. Sensui's abilities enable him to battle all three on equal footing. During the battle, Sensui manages to kidnap Kuwabara.

Hiei and Kurama are visited by two of the kings of Demon World with a very dangerous proposition. Meanwhile, Yusuke prepares himself for his own long journey home. He finds out that the only thing more difficult than making an irreversible decision is trying to convince Kayko that everything will be all right. Won't it?

Yusuke struggles to continue his fight with Yomi and as his demon blood continues to flow through him, his demon engery also flows out.