The pinnacle of human civilization has come and gone, leaving only ruins in its wake. Society and science now struggle to rebuild, rediscovering scraps of knowledge from powerful ancient artifacts that defy comprehension. These relics of the “Old World” can make the fortunes of those who find them—if ancient security systems and rogue bioweapons don’t kill the relic hunters first.Akira, a young street orphan, sets out to become one such hunter to escape his brutal life in the slums....

Akira heads east to a brand new city! He’s reached hunter rank 50, a reward for his role in fighting the nationalists and a sign that he is outgrowing Kugamayama. And with new growth comes a new woman in his life—the prodigy city official Hikaru! She convinces Akira to help guard a convoy heading east. But the monsters farther east might prove to be more than he can handle. Formidable new monsters and startling surprises await him out on the frontier!

The tankrantula—despite its overwhelming power—is finally crushed! As Akira and the rest of the relic hunters rejoice, however, a few people begin to harbor questions about the boy’s uncanny battle prowess: the Druncam rookie Togami, Shikarabe and his buddies, and the mysterious cyborg Nelgo. Nevertheless, Shikarabe whisks Akira off to fight another bounty monster, the multigun snail! Meanwhile, Katsuya prepares to set off for his first mission as a commander, leading the task force agains...

Akira’s in trouble—the battle with Old World automatons in the Iida ruins destroyed all his gear, and without it, he can’t hunt relics! Meanwhile, Katsuya and Yumina are eager to return to each other’s side. To do so, Yumina is mastering the skill she learned from Akira: controlling her sense of time. Unfortunately, the power struggle among Kugamayama’s leaders grows more ruthless by the minute, and everyone is dragged into the conflict. Ideals, hopes, and wishes all collide. What fate lie...

Akira is riding high after a lucrative deal when he encounters a young pickpocket who shatters his newfound confidence. In a blind rage, he gives chase, desperate to restore his pride—but his rampage brings him up against familiar faces: Katsuya and his team. The young hunters already have bad blood between them after their misunderstandings in the ruins, and Katsuya can never resist a damsel in distress. When he sides with the thief, Akira’s fury boils over, and not even Alpha can rein hi...

It’s Akira’s first day on the job in an underground labyrinth crawling with giant scorpions, and his supervisors just ordered him to hold the line against a fresh incursion. Not even his newly upgraded arsenal will suffice to fend off this relentless assault from all sides. His survival rests on his ability to work with two of his fellow relic hunters, the temperamental Reina and her overprotective chaperone Shiori. But Akira doesn’t work well with others at the best of times, and his last...

With his trip to Zegelt City behind him, Akira has returned to Kugamayama, where the government’s plan to probe deeper into the Kuzusuhara ruins is already underway. But the arrival of some high-rankers from farther east augurs new chaos, while the femme fatale Carol brings Akira an irresistible proposal! Armed and outfitted with yet another fresh set of gear, Akira plunges into the vast unexplored depths of Kuzusuhara, facing trials and foes beyond anything he’s seen yet!

It’s never a dull moment for Akira! Just after he escapes the deadly Zone 3 of the Kuzusuhara depths, an impostor shows up and frames him for the slaughter of a city leader! Now wanted by Kugamayama City for murder, Akira hides out with Dragonriver, waiting for a chance to strike back at his doppelgänger and clear his name. But then the fake Akira kidnaps Sheryl and reappears in the Serantal Building accompanied by a certain girl—the very person Shirou’s been searching for! As Akira and Sh...

Sporting a new motorbike and an upgraded arsenal, Akira is ready to tackle ruins more distant than Kuzusuhara. The long-abandoned town he comes to is supposedly safe, but you can’t trust everything you hear—and he isn’t the only relic hunter looking to test his mettle on its streets. Before his expedition is over, Akira finds himself dodging would-be rivals and contending with colossal beasts. And when his training leads him underground, beneath an unassuming building, he discovers an anci...

With his adventures in the Mihazono Town Ruins behind him, Akira returns home to find that Sheryl is joining forces with Katsuragi to start a relic shop in the slums. When the years-long war between the two largest gangs—the Ezent Family and Harlias—comes to a head, Sheryl and her business get caught in the cross fire! With Sheryl in both gangs’ crosshairs, it’s up to Akira to save her! But with Viola scheming behind the scenes and Akira having another unexpected encounter with Carol, it w...

With the gang war behind him and touting a brand-new set of gear (again), Akira is ready to dive back into the ruins for relics once more! In the depths of Kuzusuhara, the enigmatic Alpha guides him to an Old World city. There he encounters Tsubaki—the AI managing the area—who seems to hold a grudge against Alpha! Meanwhile, Sheryl’s relic shop finally opens for business. All is going well for Akira, but the city seems to have other plans for him. Many lives hang in the balance as conspira...

Akira has narrowly escaped the relic thieves’ second attempt on his life, but their deadly cyborg ringleaders have pinned him down in a ruined skyscraper. The blade-wielding Nelia moves in for the kill, forcing the young relic hunter to do battle on her terms—and out of his depth. And even if he ekes out a victory, the ominous Kain is waiting outside with enough firepower to vaporize him in a heartbeat. Once again, Akira’s only hope is to trust the wiley Alpha’s schemes—and to fight like h...