Princess Aelisia of the kingdom is rumored to be the "Key to Calamity."
The strongest knight, Rain, is ordered to serve as her guard and lead her out of the capital, which is on the verge of collapse.
Magical beasts are ravaging the borders, ruins from an ancient era are awakening once more, and enemies lurking in the kingdom's shadows are quietly closing in.
She was meant to be a princess high above the world; he was meant to be nothing more than a taciturn knight.
But when fate bound the two together, Rain realized that there was far more to protect than her life.
"If someone has to face this calamity, then I'll stand in front of you."
This is the story of a princess and the strongest knight, drawing closer step by step amid magical beasts, conspiracies, and fate.
