Absolute power leads to absolute corruption, and the presidential systems in many democracies have fatal flaws, even in the US. South Korea’s constitution should be changed to implement a modified semi-presidential system, and a declaration during the presidential inauguration ceremony should proclaim that the office is above partisan politics. The heads of the four branches of government should be elected in alternating years, and 1/4 of all MPs should face election each year. See the Charter for Permanent Peace and Development for details.