This is Valhalla. The souls of mighty warriors who made a name for themselves in the mortal world are invited to this land by the Valkyries, and even in death, they continue to hone their skills in preparation for the Ragnarok that will one day come.

In this land, the protagonist, Volg, spends his days training with other warriors, but one day, he is given two rings by a mysterious figure named Loki.

These rings steal the Valkyrie's power and reason, activating simply by thinking of the person you want to equip them to, weakening the goddess to the same level as a human, and even allowing you to control her.

Volg, who has been harboring resentment towards the Valkyries for their arrogant attitude, decides to try using the ring on Alvia, one of the Valkyries.

"Show Alvia its power," he thinks, and the ring slips onto her finger and steals her reason.

And Volg puts his plan into action. He will make the conceited Valkyrie understand his 'strength'.