Isaac Thoma lived to see the last handful of survivors defeat the demonic champion. He is now alone, his past in ashes, the last and most powerful human on a blighted Earth. But what if he could go back? Hurled back in time, Isaac has one chance to change it all. A chance to warn humanity of their impending doom. A chance to stop the [System] before shortsightedness and lust for power can render humanity extinct.

Arc was an ordinary young woman from Earth when she was summoned to an icy hell where she fought for her survival in the name of training to become a hero. Now, after defeating the Overlord itself and achieving the status of hero, she leaves with the goal of enjoying her freedom. She arrives at Arlas, a fantasy world with magic and monsters, a world with numbers, tiers, and classes, a world governed by the System that summoned her.

She's unlike any one or any thing else: a Non-Standard Leashed-Intelligence Cybernetic Enforcer aka NSLICE-00P. The first of her kind, she's let loose into a universe of superheroes on behalf of her sinister masters to destroy all who oppose them. And everything's going according to plan—until NSLICE-00P gets hacked and sent into the past to kill her own creator before he creates her. Obeying orders as always, she wastes the poor guy. Unfortunately, there are consequences to initiating a reality-breaking time paradox. The most significant: total ejection from that reality.

Lightning brought her back. Now, it's her best weapon to survive the apocalypse. When the end of the world arrived, Elysia was already dead. Amid widespread destruction, collapsing cities, and dangerous creatures, strange lightning struck her grave. Rejuvenated by the violet lightning, life returns to her broken body. Elysia must find a way to harness the element in her veins or die as she's thrust into a dangerous new world. Better than being dead.

The Netherworld: it is a hellish landscape inhabited only by demons. Joining the ranks of newborn demons, Salvos is thrown into the violent, anarchy-ruled landscape of that world. To survive, she will have to learn, she will have to adapt, and she will have to evolve. She will gain experience to reach new Levels of power. Her curiosity aids her but her pride could be her fall. It is the nature of the Netherworld to avoid or conquer any threats faced. After all, the law of evolution is survival of the fittest, and Salvos is a survivor.

She wanted to be a Necromancer, but awakened as a Saint! Somehow her summoned heroes are all undead? How will the church react when their Saintess summons a skeleton in place of a mighty hero? Sofia isn’t too keen on finding out. In this world, Gods choose [Saints], and [Saints] summon [Heroes] from other worlds; everyone knows that. But Sofia had a thing for bones ever since she was a child; there’s only one [Class] she wants: [Necromancer]! When, by the whims of fate, she gets both classes at the same time, the system breaks.

Elaine is ripped from this world to Pallos, a land of unlimited possibilities made real by a grand system governing classes, skills, and magic. Join Elaine as she travels around Pallos, discovering all the wonders and mysteries of the world, trying to find a place where she belongs, hunting those elusive mangos, all while the ominous Dragoneye Moons watch her every move.

Ten years ago, Amelia woke up alone and lost in a broken world where she had to fight for her survival. Now, after reaching the pinnacle of power, defeating the Void itself, and escaping the abyss, she has finally found her way back into the real world. But instead of returning to Earth, she arrives in the land of Vacuos. A fantasy world with magic, monsters, Classes, and Levels. A world that is governed by a System like it were a video game.

When an ambitious teenage girl from Earth finds herself in a magical realm, she could be the hero—but she'd prefer to be the villain. When power-hungry Everly is reborn into a medieval world where elemental magic rules and she receives her elemental servants—the oddly sadistic Eris and the fun-loving Titania—years earlier than one typically would, she knows she's destined for a command of necromantic magic the likes of which her peers can only dream.

After Lucas dies during a freak explosion, divine intervention sees him brought back to life with the power to control a new dungeon. There are just a couple of issues: his old body is bound to his dungeon, and the craziness of what he thought was his final act is only getting weirder. When he sees newbie adventurers entering his dungeon, though, he decides to help them survive and complete their quests. After all, adventuring is a process, and someone needs to guide the rookies.

Waking up adrift in an ancient battleground, Alex is left dazed and confused with no clue how she ended up trapped aboard a failing vessel. With only a mysterious voice in her head to guide her she must act in order to survive. Every piece of the puzzle she collects only leads to more questions about her origins and the star she's trapped around might not be as deserted as she first thought. All she knows for sure is that she could die at any minute, but Alex is not going to go down without a fight.

Alexandra Rousseau, an engineer from the European Federation Star Navy with a past darker than the void between the stars, is unexpectedly launched into hyperspace when an FTL jump goes horribly wrong. She wakes in a world of magic and monsters, encountering a mysterious Order with plans millennia in the making. When the Order makes a catastrophic mistake, transforming Alexandra into a dungeon core, they inadvertently give her the power to bring back technology long since thought lost in this world.

Quinn can barely handle her own life. When the Library of Everywhere discovers her compatible magical signature, suddenly, she is the sole existing potential librarian. Now, it's not only the weight of her world on her shoulders—Quinn must connect with the library system before the universe itself disintegrates. Once she's settled, it should be quiet, peaceful work—just as soon as she battles a few engorged bookworms, repairs hundreds of years of damage, and figures out why there's been no librarian for the last several centuries.

A soul from Earth awakens as Seventh Princess Adelheid of the Vuldar Empire. With a weak body but a monstrous reservoir of mana that threatens her very life, Adelheid engraves an oath into her very soul. She shall seize the throne at all costs, but with ambitious cousins and discontent nobles, her father and brother are far from her only rivals. Experience Adelheid's journey through victory and loss to achieve her deepest desires.

Elania's life takes an unexpected turn when demon-worshiping cultists summon her to their world, aiming to revive their dead god. When their hated foe strikes, she escapes into Eladu's darkest depths. Amidst savage predators and underground monsters, Elania discovers her newfound abilities are both a formidable ally and a haunting burden that threatens to reshape her very soul. To climb higher towards civilization means she must contend with anti-demon sentiment and those who would use her as a source of arcane power. But Elania is not alone in her struggles.