Challenge with the “Three Pillars”! 231 BCE — the Han conquest campaign. After a crushing defeat by Zhao at the Battle of Bango, Xianyang sinks into despair—until Supreme Commander Shou Hei Kun proposes a life-or-death “three pillars” plan. Qin mobilizes the whole state to claw back onto the road of unifying China. As the first step, civil officials race across the land to build a nationwide household registry…!