The archer that shot the suns...
Hou Yi.
Many years ago, there had been ten suns that existed on the earth. Each day these suns would travel across the skies one at a time and they would bring down warmth and life to the earth. It was a rule that these suns are only allowed to fly across the skies taking turns once a day. Life for the ancient people of those ancient cities had been peaceful, then. However, these suns were young and no different to children.
Regardless if they knew the reason this rule existed for or not, they saw what there were doing as nothing more than a game. that they could do for work. Flying in the sky was akin to having fun. Nothing was more important than that!