This era is an era ruled by giants. Giants are called heroes. They live in green castles, while civilians (ordinary humans) live in cities and villages. Civilians offer ores to giants, and giants absorb the energy to compete with alien creatures and protect the entire planet.
Yijie is the son of the Giant King. He is not yet a minor. Before his energy was activated, he was still in the shape of an ordinary person. Unlike most giant heroes, he was full of curiosity about the world and various creatures, especially civilians, so he hid his identity and went on adventures. Along the way, he met many interesting partners, saw the suffering of the civilian world, understood the ugliness behind the heroes, and made up his mind to change everything.
Mission: All people are created equal