In an alternate history where Japan's experiments during World War II yield a serum that enhances human abilities, the world is thrown into chaos as powerful families rise to replace overthrown governments. This new age, defined by a "might makes right" philosophy, will see the strong dominate the weak, with only a select few unlocking abilities alongside their physical augmentations. In this harsh landscape, the struggle for power and survival unfolds as society grapples with the consequences of these newfound abilities.