The queen was declared barren, your mother, who was a concubine, was forced to give birth to a successor to the throne. Your mother died after giving birth to you. for 7 years. People called you 'the king's wasted daughter' because the king himself ignored you. Until one day when the king summons you to his palace "I've decided because the queen is barren and what's more, your mother died and couldn't give birth to a male heir. I will immediately crown you as the crown princess of this kingdom."