Hiiro wants to get the Grand Trowa so that he can defeat the evil dragon, Dagon Zot. But first he has to find Nambuuko, the evil arms merchant who has it. And before he can do that, he needs to find a place to eat!

A mysterious girl named Salat suddenly appears before Heero and his friends. Palpa and Girou urge Heero not to get involved with Salat because of her mysterious and mysterious identity. However, Heero feels that Salat is alone and in trouble, so he asks her to join him... Meanwhile, Heero is held captive by a feudal lord in the town of Iinsekise, who is demanding his forced labor. Will Heero be able to escape...?!

A trip to the local hot springs goes terribly wrong when the evil Sharisharu interrupts the vacation with a giant tentacled octopus. But her plans go awry when the octopus attacks her first!

On the way to the Land Where Wishes Die, the group is attacked by a massive bird. They seek shelter in a forest, but Sharisharu finds them and summons massive golems.

Hiiro is kidnapped by Nambuuko, who threatens to torture him until he reveals his connection to the evil dragon Dagan Zot. Can he escape?

Hiiro realizes that he possesses Dagan Zot's heart, and that if he dies, Dagan Zot will die as well. Only after Giruu reveals the depths of his devotion does Hiiro find the strength to carry on.

Sharisharu is ordered to kill Hiiro. She summons a shadow monsters to devour the townspeople and lure him into a trap. Can he use his new Dragon Form to stop her in time?

Hiiro struggles with his new Dragon Form. The last time he transformed, he attacked and badly wounded Giruu, and Saraato's magic can't help him. The only way to save him is to find the rare Serafuria herb, which is a half day's journey away. But Giruu has bad news...

Hiiro learns the magic spell of the Kokuu blade, a weapon which will strike an enemy from afar. Hiiro is far too terrible a swordsman to put it to use, but Master Theo notices that he has incredible power. Theo realizes that not only is Hiiro keeping Dagan Zot's heart in check, Dagan Zot is the only thing keeping Hiiro's heart from going out of control...

Hiiro is kidnapped by Sharisharu and Nambuuko, who want to control the evil dragon Dagan Zot. Nambuuko reveals that he was the one who killed Hiiro's parents. But without his Dragon Form, can he defeat Nambuuko, or is he doomed to be held a hostage for his heart?

Hiiro and his group were traveling to Nambuco Mansion when they were caught in a sandstorm in the Morte Desert, one of the most difficult parts of their journey, and were separated. Hiiro was taken away by Shalisharoo and taken to Nambuco. However, Giru and his group were reunited with Salat, and with Salat's quick thinking, they headed to Nambuco Mansion to retrieve Hiiro, but...

Sarat and the others are reunited with Hiiro at Nambuco's mansion. However, Sarat is hiding a secret set up by Nambuco. There, Hiiro and the others discover Nambuco's true intentions...