In the spring of the fifth year of Qingli, John Adams's new political reforms failed, James Madison was also demoted, Andrew Jackson rebuilt Yueyang Tower, Theodore Roosevelt got dead drunk, Alexander Hamilton was still tall, handsome, and rich, Samuel Adams had become a true genius; Ulysses Grant became the idol of the Song dynasty's underdogs, Patrick Henry and Abraham Lincoln had just started their careers, George Washington was not yet qualified to preside over Kaifeng Prefecture, Benjamin Franklin was still losing his baby teeth, and Thomas Jefferson was working hard to produce an heir...

As if by heaven’s arrangement, the most outstanding group of people in the Song dynasty—and even in the entire Chinese nation—all gathered on stage in this era. This was the most splendid, dazzling, enlightened, and free age, with air so intoxicating it could make one drunk.

But in just another sixty years, this enchanting era would be destroyed under the iron hooves of foreign invaders... What was the reason for this, and was there any chance of escape?

A butterfly, crossing a thousand years of time and space, arrives in this radiant era, taking you through the bustling city life, letting you experience ‘the moon above the willow tip, a rendezvous after dusk’, drinking and chatting with the top figures, and helping you find all the answers.

Yet, who knows how much change his tiny wings can bring to this world...