Linne is a girl who cannot see other people's faces. Born into a family whose job it is to exorcise supernatural phenomena, she sets out on her mission with the help of Yakumo, the great rain god. The two defeat one supernatural phenomenon after another, but they encounter an unexpected enemy - a monster possessing a black crystal that can regenerate infinitely. The mysterious man, Jugemu, saves the two from peril.

Jugemu has the power to destroy the infinitely regenerating monsters, and the girl who supports him, Neo. Rinne asks them about their backgrounds, the monsters' true identities, and the words Jugemu spoke, "Master Orb," but they don't answer. However, the next day, Rinne spots Jugemu wandering around the school during class...

Jugemu and his friends defeat a horde of monsters known as "core bearers" that are attacking the city. However, a new horde of core bearers appears along with the "Masked Man" and attacks Linne's mansion. Jugemu and his friends fight back, but are overwhelmed by the immense power of the Gourai-class monster "Shringara" that the masked man summons. Then the masked man reaches out his hand to Linne...!

When a masked man, the World User, steals half of the Master Orb, Linne's world begins to collapse. Linne decides to pursue the World User in order to retrieve her world's Master Orb. They head to another world that, like Linne's, is on the brink of destruction. There, Linne and her friends meet a girl named Masamune who calls herself "Guardian Sword."

Leaving Masamune's world behind, they next head to another world where the Master Orb has been stolen. It is a battlefield where the revolutionary army, led by the military genius Kirinji, is fighting against a strange army led by a Core-wielding being. They propose joining forces with Kirinji, and the group joins forces with the revolutionary army. Meanwhile, Yakumo notices a secret problem that Rinne is harboring...

In Neo's world, where the Master Orb was once stolen, the reaction of the World User appears once again. Its true identity is a structure floating in space - a gigantic Core Holder that is falling towards the Earth! To prevent a collision with the Earth, Neo and his friends take off into space in a shuttle. They launch a desperate plan to infiltrate the Core Holder and destroy it!

The barrier of the White Library has been broken by a masked man - a World User. A large army of Core holders invades the interior. The World User's goal is the Primordial Orb, said to be stored in the deepest part of the White Library. In Jugemu's absence, standing in the World User's way is Strike Island's guardian deity, God Strike.

The Primordial Orb has fallen into the hands of Angry, the World User. Strike Island is shrouded in ominous dark clouds. However, with his newfound powers, Jugemu defeats the Thunder Monster Kakagosedek and corners Angry. Angry seizes a momentary gap to escape, and absorbs the power of the Caliente Volcano into himself in order to eliminate the Irregulars...!

Angry, who had transformed into a fiery monster, was defeated by Jugemu. However, a boy who uses worlds suddenly appeared and cut Jugemu in half, sending fresh blood flying into the air. Witnessing Jugemu's body cut in half, Rinne awakens. A large bullet of light is fired from Rinne's spirit gun and approaches the boy who uses worlds...!

After retrieving the Master Orb from the world user Nowhere, Linne awakens to her true power. However, Nowhere also transforms into an eerie monster. Claiming not to see what she doesn't need to see, Nowhere attacks with overwhelming force. However, Linne retains the power of the bonds they have built up until now... The final battle between Linne and Nowhere begins.