Less Chaos: Re-Entering the Warring States Period

A young prince who has just succeeded to the throne, and a young commoner who has not yet been crowned. The young princes claimed to be public and for the people, but in the end they were just selfish; the young man ran up and down, not only for the people, but also for the survival of the country, and for the peace of the world. The emperor first stood up and commanded the world, and the princes of the great countries gathered in Luoyang and went to the emperor's house. There was peace in the sea for decades without chaos. Now the great cause will collapse, the world will be in chaos, public instruments will be abolished, and selfish desires will arise. How will the world enter the Warring States Period again in another way?