Zhuliu: the Holy Chosen King of the Four Directions

Many years later, when Lan Yin stepped on the deck of that strange warship and almost fell, he would still think of the sparse and ordinary afternoon when he met the destined girl in Haochang, the capital of the Haochang Empire, in the 24th year of Dading. Destiny has caused countless pasts and futures to intersect here, but the people living in them know nothing about it. The flow of time flows relentlessly. People chase the flowing water, but they don't know where the flowing water will take them. (No system + no harem + alternate history + group fantasy)