Lina and her friends search for the Hellmaster's jar to bring Rezo back so he can help revive the people from the plague. Meanwhile they run into a woman whose soul was forged into armor.

Nama leads the crew to a village that has been being harassed by a headless knight named Hans. When they capture him, he offers one of his jars in exchange for them helping him find his missing head.

Amelia and Nama get separated from the crew and Amelia ends up stuck inside of Nama. The two then hear about a dragon from a nearby village and decide to take it on.

Kuppi, the fishwoman captured by the pirates, comes to Gourry under the pretext that he is the father of her two children. Madness ensues as Lina fights to get Gourry back.

Nama finally leads the gang to ruins where the jar that sealed her soul into the armor lies. Unfortunately, as Xellos notes, this is not the real Hellmaster's Jar, and the Hellmaster's Jar lies in Zuuma's possession.

Upon Zuuma's demand, Lina and company go to Vezendi and find out that a merchant named Radock has the Hellmaster's Jar. As a target of Zuuma, he hires them to be his bodyguards, but they are attacked by two monsters, Gduza and Dugld.

In order to find out more information on the Hellmaster's Jar, Lina, Gourry and Pokota follow Ozzel, encountering Zuuma along the way. Meanwhile, Amelia and Zelgadis are attacked by Gduza and Dugld while guarding Radock.

In order to lure Zuuma out, Radock, Abel, and Lina's crew go on a business trip. While they stop, Zuuma, Gduza, Duguld, and an army of monsters attack. Lina and company learn that Radock was Zuuma all along, but he is killed by Xellos.

Having obtained the Hellmaster's Jar, Lina and the party hear Rezo's voice inside. Following random instructions, they go through several tasks before finding Ozzel and the jar stolen by some bandits.

Zelgadis steals the Hellmaster's Jar and reveals the true nature of Rezo. Rezo confirms this for Pokota and tells him that in order to save Taforashia, he must inhabit Pokota's body. Meanwhile, Zelgadis learns the truth about chimeras.

Having finally been revived, Rezo the Red Priest awakens the people of Taforashia and cures the disease. However, Lina, Gourry and Xellos question Rezo and find out that his soul is still host to a fragment of Shabranigdo, the Dark Lord.

Shabranigdo has been revived, and Lina and the gang struggle to hold out against him. Pokota holds him off while Lina readies the Giga Slave, the spell she used to defeat him before.