Synopsis: Dear Sir, to Us Who Were "Ice Knight and Mediocre Princess"

Ridelle was an unhealthy and withdrawn Princess until she was charmed by Sir Oscar's quick-wittedness and agreed to marry him. Unfortunately, their life together was filled with misfortunes after she discovered he had no desire for their union. After a tragedy struck Ridelle's life, their world shattered. Nevertheless, their story became that of two star-crossed lovers, the "Failure Princess" and the "Ice Knight," who brought misery wherever they went.