Key to the Sun

In a world mixed with magic, swordsmen, and fighting skills. Men and women with completely different life experiences and experiences meet by chance on a train. Is this a coincidence or driven by fate? Just as the battle for the king every hundred years in history is about to begin, everyone fights with all their strength. After hard training, those who finally inherit the power of the sun join hands with their partners and embark on the road of no return to become kings in order to fulfill their dreams. PS: I hope you can subscribe~