A long time ago, there was a valiant swordsman who came to be known simply as "the hero." There was a demon who has caused people suffering. The hero and his companions arrived to challenge the demon to a battle and by combining their powers, the battle was brought swift conclusion. With no one around to cause trouble, the island became a quiet place where everyone could live together in peace. Several years later, the demon is revived. Our present-day protagonist, Dai, lives on a remote island in the southern seas and dreams of becoming a great hero. When he hears about the demon's revival, Dai and his friends take it upon themselves to stop him and the evil force that revived him. Along the way, Dai discovers the identity of "the hero," the truth behind the evil force who revived the demon, and Dai's own hidden powers that surface in times of peril.
Mystvearn captures Popp and Maam and all seems lost. But Land Rider Larhart appears and rescues them before kneeling before Dai and relaying Baran’s last wish to him...
Popp, Crocodine, and Chiu search for Dai. Zaboera also leads his servants to find Dai, causing the parties to clash. Popp rescues Dai, but Zaboera unleashes his Super Spell. Just then, a mysterious shining warrior appears between them and...?
Larhart appears before Hyunckel and Hym, and takes the Dark Armour Spear before leaving to protect Dai. Meanwhile, Dai, Popp, and Maam face off against Mystvearn.
The missing Hyunckel and Crocodine are prisoners of the Dark Army. A meeting is held in which it’s decided that Dai should rally the forces. Meanwhile, Dai awakens, but is unable to bear the weight of being a Hero and runs. He ends up in...?
The members return, having completed their training. Dai and his friends head to Carl Kingdom. There’s a change in the Field of Death and they land with a heightened sense of tension. Meanwhile, in a remote cave, Baran and Killvearn face off...
Lon Beruk brings the restored Sword of Dai and new weapons. The group renews their resolve. Maam is shaken by Amy’s feelings for Hyunckel and Popp is frustrated his Insignia of Avan won’t shine. As the final battle approaches, things grow shaky...
It was Avan, returned from the dead, who saved Popp and Hadlar! Dai, Popp, and Maam embrace their Master in tears. But Hyunckel, caught between conflicting emotions, is unable to face Avan. The party welcomes their new ally and heads towards Vearn’s palace!
A giant body, unbelievable speed, unparalleled strength, and rapid regeneration... The Superior Being, Zamza, is a terrifying threat. Dai faces him but loses stamina too quickly. Dai falls. All hope seems lost. But only Chiu refuses to give up...!
To fight the Dark Army, Leona gathers world leaders for a summit. Dai hopes to learn of a new legendary weapon. In Zaboera’s hideout, Hadlar is hooked up inside a large bio-chamber. Hadlar is letting Zaboera perform a certain experiment on him...
Dai and his friends return to Papnica. They learn of a Martial Arts Tournament in Romos where the winner will receive a legendary weapon. Dai and Popp head to the tournament where a certain contestant’s fighting catches their eyes.
Leaving Hyunckel to guard the rear, Dai and his friends enter Vearn Palace. Avan scouts ahead and asks a favor of Leona. Back on the surface, the humans overcome Zaboera’s monster horde. The tide of battle is turning, then Zaboera executes a plan.
Young Dai lives on Dermline Island, where he dreams of being a Hero. One day, a Hero and his companions come to the island. Dai is excited at first, but their true intent is to steal his best friend, Gomechan, the mythical Golden Metal Slime.
A story of Avan when Hadlar was still the Dark Lord. The Order of Carl faces the Dark Army with its princess, Flora. A young Avan protects the princess. Hadlar attacks Carl Castle to capture Flora and...? How Avan and Hadlar’s rivalry began...
Matoriv is a Grand Sorcerer living in a cave. At first, he’s resistant to helping, but upon learning that Dai is Avan’s last student, he agrees to help save Leona. Meanwhile, Hadlar’s Dark Army prepares a scheme.
Popp faces the Dragon Masters alone and falls into peril. Hyunckel arrives to save him. Popp and Hyunckel defeat Galdandy and Borahorn. Popp loses consciousness and Hyunckel faces Larhart. But Larhart is far more powerful than Galdandy or Borahorn.
Seeking the legendary spell Kaglimmer, Leona, Maam, Merle, and Flora brave the Cave of Trials. Dai sets out to train until Leona returns. As they prepare, Flora tells Maam a secret of the Insignias of Avan. When Popp overhears them...?
Dai and Popp were reunited with Maam. Maam promises to win the Sword of Champions. Maam wins her way through the preliminary fights. But an evil plot unfurls behind the scenes... As the finals are about to begin, one man springs into action.
Dai must take Leona to the Earth Cave for a ritual. At first, Dai dislikes Leona, but they slowly come to understand each other. Suddenly, a giant Evil Scorpion attacks. Dai defeats it, but Leona is poisoned. As Dai’s wishes to save her...
Dai and his friends prepare for their next battle as Papnica rebuilds. Maam hears the words of Matoriv and comes to a decision. Meanwhile, Vearn’s personal assassin, Killvearn and his companion Piroro appear before Hadlar. What will they say to him?
A dark power affects Dai’s monster friends, driving them berserk. Brass tries to get Dai to leave. As they argue, a Hero trainer arrives to inform Dai that the Dark Lord has returned. To save those he cares about, Dai undergoes Hero training.
Lon Beruk, begins forging the greatest sword in the world for Dai. Meanwhile, in Papnica, the world summit of the world’s leaders begins. But the talks drag on without progress, troubling Leona. Just then a giant enemy appears...
Hyunckel refuses to proceed with Avan and stays behind. Dai and the others are bewildered but advance without him. The party reaches the doors to Vearn Palace. At a loss as to how to breach the doors, Avan steps forward…
Dai and company arrive late at night to the castle town of Romos. The next morning, Crocodine attacks with the Furfang Legion. In Romos Castle, Dai faces Crocodine. Crocodine decides to use the weapon that Zaboera gave him.
Hadlar was more powerful than ever. Along with an indomitable Superior Being body and an unbreakable will, he also has the ability to cast spells. Dai could only defend himself. Cornered, Dai unleashes an Avan Strash with the Sword of Dai.
Dai and Hadlar’s battle ended in a draw, with Dai lost in the ocean. Killvearn attacks the despondent Popp. Popp remembers the words of Matoriv and retreats, but Killvearn pursues. Can Popp escape? And what happened to Dai...?