Nemeton

Due to the appearance of mysterious spaces called “dungeons” all over the world, most people have awakened to supernatural abilities called “skills,” but the protagonist, a young boy named Yuga, has not awakened to any abilities. Yuga admires Jaeger, who uses his “skills” to explore the “dungeon,” but since he is powerless, he works as a “corpse disposal team (demolisher)” who disposes of the corpses of monsters that have been defeated, as a subcontractor for Jaeger for a small reward… One day, while “Jaeger” is disposing of the remains of a Cyclops that he had defeated, the monster that was not yet dead goes on a rampage, and the members of the corpse disposal team are killed one after another…! A mysterious being in the form of the Grim Reaper appears before Yuga’s eyes at the last moment! A heroic tale of a powerless protagonist who awakens to the forbidden ability of \[undead transformation] and rules the dungeon as the strongest necromancer!

Yuto Kanzaki, a young man working at an orphanage, lives a peaceful life looking after the children while secretly harboring feelings for his childhood friend, Chika. But everything changes in an instant when "Exeedra"—a notorious terrorist organization that once terrorized the world—suddenly resurfaces. Rioters and sinister executives targeting Chika launch a brutal assault on the orphanage, unleashing overwhelming violence upon Yuto! In a desperate, life-or-death crisis, as his fury over Chika being harmed boils over, a mysterious, berserker-like power awakens deep within him—!

Decades have passed since the world became flooded with monsters. The protagonist, who enrolled in an academy to train those with aptitude, consistently ranked last in ability tests. It would have been one thing if his abilities were merely low, but because he also inflicted a debuff (ability reduction) on his surrounding comrades, he was called “unwanted” and a “burden.” One day, while exploring, the protagonist is swallowed by a different dimension and goes missing. There, he encounters a creature from another world and is told the true value of his ability. Originally, magical power is something used to attack by projecting one’s own power outwards. However, the protagonist’s characteristic is the complete opposite of this “output”; it is “input” (absorption), and the ability to suck in external power is his true strength… “Reverse Magic Circuit.” The reason he had been debuffing his allies until now was that he had been unknowingly absorbing their power. Having learned the true worth of his power, the protagonist now absorbs monster attacks to nullify them and gathers external power to strengthen himself, mastering his abilities and proceeding on the path to becoming the strongest.

Kabukicho—a city rampant with murder, robbery, assault, and theft. Amid the chaos, a "weapons dealer" provides tools for survival. Tosa, a handyman renowned as Kabukicho's strongest, runs an orphanage for children without parents, just like himself. Though poor, he lived a happy life with the children until a conflict with an anti-social organization robbed him of his most precious bonds. Devastated and consumed by rage, Tosa embarks on a quest for revenge. To curb his recklessness, the informant Mitsuki introduces him to a man: Kai, the "weapons dealer" of Kabukicho. The fateful meeting between the handyman Tosa and the weapons dealer Kai sets the city in motion—a gritty hard-action tale set in Kabukicho!