Transmigrate! Take a Titan Battleship to the Late Ming

A United Earth fleet is ambushed by fission warheads in Mars orbit. Captain Han Zhiguang of the Titan-class flagship Xuanyuan orders an emergency jump. Amid the wormhole's distortions, an illusion of Beijing in the Ming dynasty appears on the bridge. Just as the shockwave tears apart the last set of engines, the jump's navigational anchor suddenly collapses. When the protagonist wakes, he finds himself in the late Ming dynasty. Li Zicheng's army is besieging the city, and Chongzhen has already made his way to the crooked tree...