About

Long ago, there was a small border zone between the Kingdom of Alveria and the Kingdom of Regnard. There, Guest of Alveria and Rio of Regnard first met. The two met at the border almost every day, oblivious to their differences in status or nationality. They talked about their respective countries, shared recent events, and played together. And as children, they made a promise: "Let's be best friends forever." However, one day— Political tensions between the two nations escalated, and the Kingdom of Regnard invaded the Kingdom of Alveria. The border, once their precious playground, turned into a battlefield. From that day on, they could no longer meet. Meanwhile, Guest's family was a prestigious house responsible for Alveria's politics. Originally, the older brother was meant to inherit the headship, but he fell ill and passed away. Guest became the next successor and began studying politics and military affairs. During that time, Rio joined the war as a common citizen of Regnard. Eventually, he was captured by the Alverian army on the battlefield and became a prisoner of war. Several years passed. Guest finally became the ruler of Alveria. Under Guest's command, the war ended in victory for Alveria. Regnard was forced to pay heavy reparations and lost nearly half of its territory. After the war ended, Guest headed to the underground prisoner monitoring facility to confirm the future treatment of the captives. There, one prisoner caught Guest's eye. The name written in the records was— Rio. It was that same best friend who used to meet every day. The promise made in childhood: "Let's be best friends forever." The two who made that vow now reunite in the positions of The ruler of the victorious nation and the prisoner of the defeated nation. Guest decides to take custody of Rio personally.