There is a certain volunteer soldier in the mountains, deeply wounded and about to meet his end. On the verge of death, he remembers fragments of the world he once inhabited. And then, he questions. What is this world called "Grimgar"? Meanwhile, Haruhiro and his party have left Thousand Valley and are on their way to Alterna. In a forest along their route, they are attacked by massive ape-like monsters called guorellas. This forces them into a difficult battle against a troop of guorellas following a leader called Redback. While narrowly fending off their pursuers, they flee into a village where failed orcs live in hiding... He knows. In this world, there is no tomorrow that's guaranteed to come.

"I wanna be stronger. Strong enough to protect everyone. I need to be...!!" Eager for a new challenge, Haruhiro's party descends into the Cyrene Mines--the lair of the kobolds and the resting place of Mary's former allies. But not long after the combat starts, tensions between Ranta and Haruhiro begin to flare, and when the group finds itself up against an unspeakably powerful foe, Haruhiro is forced to make an impossible choice... The party faces its greatest challenge yet--the ominous monster Death Spots!

"Choco. Wait, could it be that Choco...?" Haruhiro and his comrades have become famous due to achievements no one expected from them. With his comrades more confident, Haruhiro is still agonizing over what to do when more experienced volunteer soldiers come to him. Among them is a girl whose name is still in Haruhiro's memories. At that same time, the town of Alterna moves to retake the Deadhead Watchtower held by orcs. Looking to earn some of the reward money, Haruhiro's party ends up joining their first raid alongside Renji and Choco.

By the time Haruhiro comes to, he finds himself in a gamelike world filled with terrifying monsters. This world is called Grimgar. Armed with no more strength or ability than your average boy, Haruhiro and his fellow party members struggle to survive as they cobble out a mean existence, receiving mediocre pay in return for risking their lives everyday. What kind of future does this harsh, uncaring world have in store for those who are not destined to succeed, who have no prophecy to guide them, who are not heroes...?

Under the command of Jin Mogis, the Kingdom of Arabakia's Expeditionary Force declared independence as the new Frontier Army. They then formed an alliance with the king of the goblins. Now, their next move is to conquer Mount Grief, occupied by an army of orcs. Entrusted with an important mission to infiltrate and disrupt the enemy from within, Haruhiro and his team work with the members of Shinohara's Orion, Team Renji, and the Tokkis in order to break through the "Graveyard" beneath Mount Grief. However, the mission proves more difficult than they imagined, and they are faced with nothing but close calls and dangerous foes. Forget about taking Mount Grief, are they even going to be able to survive this?! Fighting alongside old comrades. Feeling conflicting emotions during a battle to the death. Is the team headed toward hope or despair?

WHAT DO YOU MEAN, WE’RE TURNING BACK? The Dusk Realm has begun to attract attention as a new hunting ground. However, all is not well–there’s been a rise in cultist and white giant activity, and massive new monsters have emerged! Together with Soma, the head of the Day Breakers, Haruhiro and the Tokkis get caught up in large-scale military offensive against the inhabitants of the Dusk Realm. Can they make it back to the Day Realm–and if the way is cut off, where will they go?

Leaving behind Yume, who has parted ways with the rest of them, Haruhiro and the rest travel on a pirate ship to the free city of Vele. There, they decide to make their way towards the still-distant Alterna by defending the suspicious trader Kejiman's caravan. Their journey goes surprisingly well. Or so they think, until they encounter the legendary Leslie Camp... or at least a massive tent they think might be it. In what may be a twist of fate, they set foot inside it, and...?! "Haruhiro... welcome to Parano." Led on by a mysterious individual in a raincoat, their mysterious adventure into the next world, Parano, begins!