The battle against the forces of evil is nearing its end as the Undead King Leonis Death Magnus remains the sole survivor of the Dark Lords. Standing no chance alone against his enemies, Leonis seals himself deep underground with the goal of reincarnating a thousand years later and rebuilding his demonic army. Within the span of a millennium, however, everything has changed. People no longer remember the great war that led to Leonis' defeat and instead face a new threat—the monstrous creatures known as Voids. Magical devices have replaced sorcery, and humans with special powers—manifested in the form of weapons called Holy Swords—train at the Excalibur Academy to fight the Voids. Reborn as a 10-year-old human boy, Leonis meets Riselia Ray Crystalia, a dutiful girl who stumbles upon the ruins of his hibernation chamber. Believing that Leonis has amnesia, Riselia offers him guidance and enrolls him at the Excalibur Academy. Leonis still intends to take over the world, but he must first familiarize himself with a reality completely different from all he knows.

Apprentice mage Chise Hatori is invited to enroll at the College, a prestigious learning institution for sorcerers, to examine and look for a way to remove the curses she bears. Despite the reluctance of her groom, Elias Ainsworth, Chise accepts the proposal, as she believes attending the school might help her minimize her self-sacrificing tendencies. From the get-go, Chise grabs the attention of her classmates and professors alike, who have never seen a mage in action before. However, there is a sinister plot brewing behind the College's back, and the young mage will have to determine who is friend or foe in order to put a stop to it.

Polka Shinoyama's life takes a dramatic turn after being forced to use his magical powers in public. His divination cabinet attracts the attention of several people hellbent on exposing his true nature as the reincarnation of Corpse God, a necromancer from the Other World. To make matters worse, Polka and his friends are framed for the murder of one of their protector's employees. When group member Takumi Kuruya is abducted by his former boss, Kuon Higuro, Polka sends his most trustworthy ally Misaki Sakimiya to their friend's rescue. It turns out that some of the recent incidents the group finds themselves caught up in are interconnected, and Polka needs to be twice as careful if he wants to make it out alive from this maze of pitfalls.

Jack Knife Edge Town is as edgy as it sounds, and it's up to Inferno Cop to stop that edge from tearing his city apart. He's both law and outlaw, dispensing ungodly justice to evildoers like a candy machine. Lowlifes, gangsters, and even hellspawn all infest Inferno Cop's hunting ground, but that's the good news. The bad news? Prior to the story, his family was brutally murdered by Southern Cross, a shady organization that made the worst mistake imaginable by doing so. Now, Inferno Cop's limiters have been removed and his mercy rung more dry than the entrails of his victims. Something is welling up in Inferno Cop's city, however, and soon he'll face the most daunting gauntlet of his life involving him literally falling into and escaping from Hell. A flaming head won't be enough to ward off the true evil that's rapidly approaching—Inferno Cop must call upon all his allies and his own wacky antics to conquer the trials that await him.