"The Legend of Dragon's Son" is a fantasy manga series that centers on Ryu, a young boy born with the blood of an ancient dragon, a legacy passed down from his mother, who sacrificed herself to protect him. The story unfolds in a world where dragons, once revered as divine beings, have been hunted to near extinction by humans fearing their immense power. Ryu grows up unaware of his heritage, raised by a humble village blacksmith who found him as an infant. His life takes a dramatic turn when a group of dragon hunters, led by the ruthless General Kuro, attacks his village in search of the last dragon's descendant.

As Ryu's latent dragon powers awaken during the attack, he is forced to flee, embarking on a journey to uncover the truth about his origins. Along the way, he encounters allies, including Kael, a rogue dragon hunter disillusioned with his order, and Lina, a skilled sorceress with her own mysterious ties to the dragon lineage. Together, they navigate a world fraught with political intrigue, ancient prophecies, and the lingering remnants of dragon magic.

The narrative delves into themes of identity, legacy, and the consequences of humanity's fear of the unknown. Ryu's journey is marked by internal conflict as he grapples with the duality of his human and dragon nature, striving to reconcile the two while facing external threats. The story also explores the history of the dragons, revealing their once-harmonious relationship with humans and the tragic events that led to their downfall.

Key antagonists include General Kuro, who seeks to harness dragon power for his own ambitions, and the enigmatic Shadow Council, a secretive organization manipulating events from behind the scenes. As Ryu grows stronger, he uncovers hidden truths about his mother's sacrifice and the prophecy foretelling the return of the dragons. The series builds toward a climactic confrontation between Ryu and those who seek to exploit or destroy him, with the fate of both humans and dragons hanging in the balance.