Rinko, a JK at the local highschool, is a real strong karate girl. She won the national karate contest this year and is now looking for a new challenge. One day, one of the members in her club gives her a flier with information about an underground

Five years ago… Monsters gained the power to warp the 4th dimension. They became invincible. Humankind surrendered, ending the long war between monsters and humans. Thus, the humans became slaves. Today, in a small town… Meryl was a swordfighter.