The Retired Hero is an Extra - Chapter 212 - : Getting Used to Aura

[Forced Possession Summoning]A technique to forcibly summon a person from another world and defeat a monster sealed within them. It is a forbidden large-scale magic that mankind has devised to defeat an otherwise undefeatable dragon.

Yukihisa Kogure, a black company worker, was summoned to another world with this [Forced Possession Summoning] magic on one day overnight. The dragon, Veno Yveval, was sealed within Yukihisa’s body.

『To subjugate a powerful dragon by using the life of a person from another world? They will come at us with everything they have. Won’t you cooperate with me to survive?』

「Isn’t that an offer I cannot refuse? I do not wish to die.」

Thus, the escape of Yukihisa and the dragon, Veno, began.

An otherworld fugitive drama depicted by extraordinary storyteller Aneko Yusagi, unfolds!

Transmigrated to become a disciple of the demon sect, relying on the technique modifier to become a giant of the demon path.

[Detected the technique “Blood Nerve”, relying on devouring blood to cultivate]

[Side effect: easily affected by the spirit contained in the blood, becoming bloodthirsty, murderous, insane, and even brain dead]

[Please wait, system modification is in progress…]

[Ding! Modification completed and side effects canceled]

In the grimy Black Hound Tavern, disgraced hunter Kael Veymar drowns his failures in ale, his father’s shattered crest a noose around his neck. When a Fallen beast attacks him—spewing acid and cryptic threats about the Harbinger—he’s saved by Lyria, a rogue huntress with a deadly smile and a glowing amulet: the Fractalis, stolen by Kael’s father.Their reunion is cut short by Dren, Kael’s former brother-in-arms, who slit Garrik’s throat for the Guild. After a vicious alley fight, Lyria helps Kael escape, but not before a Fallen’s ooze sears his flesh, leaving veins of corruption that **pulse with the Harbinger’s voice.Seeking answers, they flee to Ms. Miller, an old ally who gifts Kael a sword and a warning: “Find Torin. The skulls will whistle your name.” But the Guild is closing in. At Celestis Rise Dren is humiliated for his failure, while the Dozen Vanguards receive a bone-chilling letter—its author dead, its ink fresh.The stakes sharpen:- The Fractalis is not what it seems.- And Garrik Veymar’s shadow stretches long from the grave.Now, Kael and Lyria ride toward Godsgrave, where Hunter blades go to die—and where the Harbinger’s eclipse waits to rise.

This is the story of a young slave gladiator in an underground arena. He doesn’t know about his past or how he got to where he is, only that his name is Aegir, and that he is strong.