Armad wants to transform a small town into a big city within 4 years. Although he is the second prince and thus isn't meant to inherit any lands, his father, the high king, has promised to let him become the king of the small town if he can transform it into a city. But not everyone is okay with this arrangement. His eldest brother, the crown prince, feels he can't have his inheritance divided. So he secretly orders his men to assassinate Armad. It only takes a month and a half to pull it off. Armad is now dead and there's no need to divide the inheritance anymore. The story should have ended right away. But then a young man with the same name dies in another place and his soul travels through time to appear in the prince's body. The prince gets a second chance to settle his scores with his killers.

But there's one problem: this new soul knows the future. He has seen the fall of the current dynasty and the ascension of a new race. His transmigration coincides with the period when the new race called Ururu will appear. The 90-year battle would start in ten years. If he wants to survive and become king, he has to both beat the crown prince and develop his town to withstand the Ururu onslaught.

Can his knowledge of the future save him? Maybe not. But he also has a system that lets him convert food into pills. With the appropriate food, he can create any pill. Longevity pills. Bone hardening pills. Glowing pills. Horse pills. Rejuvenation pills. Poison pills. Body transformation pills. He sets out to build the strongest army and the largest industrial empire the world has ever seen using just pills.