Frequently says "That is a secret." He is the Beastmaster Zelas Metallium's Priest and ranks among the highest-tier monsters (Mazoku). Usually seen with a smiling face and closed eyes, but when he opens them and turns serious, he becomes terrifyingly cold. During the War of the Resurrection, he nearly wiped out the Dragon race with a single Grand Cross. Because of this, he often bickers with the dragon Filia. Despite his power, he has a fragile mental state and is weak to psychological attacks. He travels with Lina's group. He has purple hair in a bob cut.

The protagonist, famous as a bandit hunter. A sorceress who uses magic so powerful that even Dragons, the strongest creatures in the fantasy world, avoid her. In reality, she is a cute, rambunctious 15-year-old girl who loves traveling. When it comes to magic and food, she has an insatiable appetite and skill that loses to no one. Living up to her self-proclaimed title of "Genius Sorceress," she can freely cast the ultimate Black Magic spell, "Dragon Slave." Her specialty is eating.

A swordsman whose charm points are his handsome looks and blonde hair. He has a kind side, having volunteered to be Lina's guardian after meeting her by chance, but contrary to his handsome and intellectual appearance, he is quite airheaded. He is a peerless master of swordsmanship and the successor to the legendary Gorun Nova (Sword of Light), which was said to have defeated the Demon King in ancient times. He is usually the one getting into trouble due to Lina's unpredictable behavior, but he is just as much of a troublemaker as she is.

The daughter of Prince Philionel, the legitimate heir to the Kingdom of Seyruun. She is even more of a wild, scatterbrained girl than Lina. Unfitting for her status as a princess, she dreams of becoming a legendary hero. Mistaking Lina for her ideal champion of justice, she asks to be trained by her during their journey to the Seyruun Kingdom.

A priestess serving at the Temple of the Fire Dragon King. A member of the Golden Dragon race who usually takes human form. However, because her abilities are not fully developed, she cannot hide her tail when transformed. She frequently bickers with Xellos because he is the one who slaughtered thousands of Golden Dragons during the War of the Resurrection.

The sole survivor of the Ancient Dragons. He is absolutely loyal to Gaav and is a very powerful antagonist.

Initially approached Lina's group in the form of a young girl, but later revealed her true colors and fought against them. She possesses immense power, enough to eliminate the Chaos Dragon Gaav in an instant. As her title suggests, she is the Hellmaster, the Dark Lord Phibrizzo.

Rezo's subordinate and a shamanist who manipulates the forces of nature. While training to become stronger, he met the Red Priest Rezo and gained powerful magical strength on the condition of serving him. In exchange, he was turned into a chimera—a being that is neither human nor monster. He is currently traveling with Lina's group.