In the 22nd year of Wanli, an unmanned and unmanned watercraft docked in Guazhou at night. Deep in the cabin, the censored whispers of innocent souls echoed. Legend has it that whoever can complete the twelve levels of "Gap Boat" will be named in the official history. You are the illegitimate son of a laborer, a deserter, and a private salt dealer. You are not even qualified to be included in the family tree. The tide is rising tonight, and you board the boat in the dark, just to seek justice for your brother who died in vain. The ship's lights flicker on, and you see a line of small words engraved on the deck - "The pen of history is like a knife, and those who leave their names will die."
