Episode list

In the continent of Consume, two nations, the Segua Kingdom and the Ninteldo Empire, are at war with each other, with Ninteldo ruling over 90% of the continent due to the strength of its leader, General Marcus. In the Segua Kingdom, a boy named Gear travels with his childhood friend, Nel, to the capital, seeking to join the Segua army in order to avenge the death of a loved one. Segua's vice-general, Lumses, tests Gear by pitting him against fifty of her soldiers; Gear defeats them instantly with his amazing speed. Impressed by his strength, Lumses enlists Gear in the Special Forces, alongside an archer named Opal, and tasks them with the mission of rescuing Segua's strongest warrior, General Alex, who is being held prisoner in the Ninteldo-allied country of Tatrand. Later that night, Gear is called out by Opal, who disapproves of him and who challenges him to a fight for his right to stay in the army. Gear manages to win easily with a direct attack, earning Opal's praise after he explains how he admires those who aim to go forward. The next morning, Lumses introduces the third Special Forces member, a somewhat perverted mercenary named Tejirov, who decides to train Gear for the operation, his barriers winning against Gear's speed.

Tejirov trains Gear, Opal and Nel to use their "Killer" abilities, special skills possessed by only a small fraction of people in Consume. Lumses and Tejirov discuss the possibility that Gear is the son of a man named General Alex. Gear asks Tejirov about other Killers, especially the strongest ones. The group starts its mission to rescue General Alex from Hope Fortress. While on their way, they find a wounded Segua scout who asks to be "absorbed." Tejirof and Opal explain that Killers can absorb the life forces of others, gaining their strength, but that there are limits to how many one can absorb; Gear can absorb two. They are interrupted by the appearance of the Vaiz, one of Tatrand's Killers. Tejirov cages him in a wall of light so they can escape. Once inside the fortress, Opal plays decoy so the others can get past D. Fisher, another Tatrand Killer. Tejirov, Gear and Nel reach General Alex's cell, where Gear finds out that Alex is, in fact, his father.

Gear confirms that General Alex is his father, but cannot rescue him because of the wound Alex suffered in the cell. Tejirov tells Gear that he must instead absorb Alex. He refuses at first, but Alex says he has no choice and forces Gear to touch him. Before he is absorbed, Alex tells Gear the story of his mother, the only killer Alex considered to be his equal, whom he had to absorb after they were so badly wounded in combat that they could only survive if one of them absorbed the other. Opal is left unable to move after her battle with D. Fisher and is nearly killed by Vaiz's brother Voiz; but she is rescued by a newly energized Gear, who joins the siege on the fortress. Tejirov leaves to prevent Bays from interfering with Gear, leaving Opal in Nel's care, but Vaiz surrenders, remarking that the battle is already lost. In the end, Segua takes Hope Fortress, and Gear is given the nickname of "Blue Sonic," becoming infamous throughout both the Ninteldo Empire and its allied countries.