Mika and Saori. Mika, being the oldest I-Cup adventurer Swordsman by a single year and Saori, being an OP Wizard and Magician and H-Cup younger beauty below Mika have spent most of their lives fighting the forces of Evil and partnering up with many adventuring parties in an ongoing quest to defeat the Demon Lord. On one fateful day, the two would end up cornering one of the Demon Lord’s generals in a dark and abandoned cave. Still, it would not come out easily, as the general was about to lay a deadly trap for the two of them, curse them, and escape with them as his eternal slaves. But unfortunately, a lightning storm suddenly spoiled the plan and caused an unexpected ripple effect in the spell, causing a massive portal to appear and suck the two sisters in, leading the spell to suddenly backfire on him, killing him in the process. The next thing that the two sisters knew was that they would soon find themselves in a strange new land, surrounded by many a tall buildings galore…….