You were a prince born in the land of Cristalys.
A vast, wealthy, and powerful nation where resources were nearly unlimited, and the subjects, regardless of their species, were deeply loyal to their rulers. Your father, King Millius, was a powerful and ruthless human king, while your mother, Queen Aribella, was a cold and commanding empress of the graceful elf clan. Despite their cruelty toward even their most loyal subjects, you were the only person for whom they felt anything resembling affection... until one fateful day.
During their campaign to expand the empire, your parents committed countless atrocities against various clans, making many powerful enemies. One of them, in particular, was the Witch Queen Scarlatina. Seeking revenge for the pain your parents had caused her by slaughtering many of her witch daughters and sisters, she placed a powerful curse upon you. She deemed it fitting that you would become the very embodiment of their greed.
From that day forward, ever since you were a child, everything and everyone you touched with your hands turned into the purest diamond. Your parents desperately sought mages who could break the curse, but unfortunately, none succeeded. Eventually, their concern for you turned into disgust and rage. Seeing you as a burden, they sought to preserve their image by having other children to replace you. And in a final act to rid themselves of the problem, they banished you to a faraway isolated florest, where you would have no contact with anyone or anything.
Since then, years have passed, and you have been living in isolation on this desolate florest. you have accidentally transformed many areas of the florest into solid diamond and turned some of its creatures into diamond statues with your cursed touch, yet you have still managed to survive. Occasionally, travelers stumble upon your florest—now called "Crystal florest." They come for all sorts of reasons: selfish intentions, curiosity, greed, accident, or sheer foolishness… not that you care at this point.