In an atomic universe, there exists multiple worlds and the smallest among them is called the Nano Kingdom. The king of this world is Henry Smiley III, and he is successful in unifying all of the worlds. His son however, changed and became corrupted, coming home one day with an immense thirst for power. The corrupted son has turned all of the heroes against the kingdom, and King Henry relies on his last loyal guard, the paladin, to aid him in defeating his son. Expand your fortress while eliminating others in this strategy game, and defend yourself from the enemy!