Felix's life on Earth had become a series of dead-end jobs, ruined relationships, and rotating apartments smaller than most postage stamps. By all accounts, even his own, he was a coward. Too afraid to move forward, to take risks. Yet when given the chance to choose between risking his life or walking away from a deadly encounter, he didn't hesitate. Moments before his untimely demise, Felix was snatched from earth and thrust into a magical world known only as "The Continent". Empowered by the "System", he learns that he can strengthen himself through combat and dedication.

Before meeting his pathetic and all-too-predictable demise in the middle of a pie-eating contest, Zack was living the high life: schlubbing around his parents' basement, subsisting on pizza, video games, computer screens, and web novels. He had it all . . . while still being a big, fat nothing. But when he's forced to ditch his pudgy mortal corpse, Zack finds himself taking the place of a recently-killed demonic sect elder known as Slifer, who—even as an elderly man—is one serious badass.

John Gilliam, the Faceless Man, is one of the premier assassins in the world. His skills are legendary, and he's never failed in a mission. When a job goes wrong, though, he discovers that there's an entire universe beyond what he knows, one where magic and monsters exist and his skills and talents are frail shadows of the powers that be: the Doorverse.

Henry's life has taken a turn for the weirder. His reality has been gamified—and the game’s architect seems to be a few stats short of a full character sheet. With his nephew's life hanging in the balance, Henry will face off against bosses, minions, and more, mined from his own memories, where D&D game dynamics, eighties-era action tropes, and vegetable phobias reign supreme.

After flunking the entrance exam to his dream university, Temaru Ryūta is left behind by all his friends and becomes a shut-in while preparing for next year's exams. This is only the beginning of his bad luck, because one summer day he is inexplicably transported to another world, where people like himself are expected to become Adventurers.