When Satou's best friend, Hime, informs him that she is relocating, he chooses to accompany her. Following his interruption of her wedding in another world, he becomes the groom after she unexpectedly kisses him! A prophecy declares that her husband is fated to become the Ring King—a hero of tremendous power who will rescue the world from the Abyssal King! Is Satou capable of meeting this challenge, or will his new marriage conclude before it truly starts?