Mugen Renkan is the story of an immortal slave girl who escapes the clutches of her horribly abusive captors and embarks upon a journey through the ages. Our heroine's quest for freedom takes her to medieval Europe, the Wild West, Meiji Japan, and beyond. In each age, she must elude the servants of the Immortal King or be dragged back into eternal slavery. Will she be able to find the strength to win her freedom? What future awaits this girl who cannot die?