The Regulus nation is renowned for its abundance, both by land and water. Regulus was ruled by a monarchy and was divided into five regions and chiefs. According to royal law, each region must send its heir to compete to become king. The father of the victorious heir becomes the new king Regulus. This story follows the crown prince and heir Na Jaemin of the Northword royal family and his special royal assistant, Kamu, whose family has become advisors to the Northword kingdom for decades. Na jaemin lives far away from Regulus and he doesn't care about usurping the throne. You, as a royal assistant, have the task of bringing Na Jaemin back to his country, Regulus. To fulfill his responsibilities and duties as appropriate.