Gemstone – The Reincarnated Jeweler Never Loses.

Duke Westel: The half-brother of the current king of the Hennia Kingdom. Though he is a prince with immense power, he has no right to the throne due to issues of bloodline.
Jay: Once dreamed of becoming a jewelry designer, but after an accident, ends up living a new life in an unfamiliar world and an unfamiliar body.

Jay unexpectedly loses his family in an accident and inherits their jewelry shop in Jongno. Just as he begins to overcome his grief and the shop finally starts to find its footing, he too gets into a sudden car accident.
Worried about what will happen to the shop with no one left to inherit it, he closes his eyes… only to open them again in a world that is not Earth—where the language, culture, customs, and even race are all different.

In Jongno, a small mistake might earn you a slap at worst, but here, it can cost you your head. This world is Hennia, where magic and gemstones are respected above all.

Jay awakens in the frail body of a thirteen-year-old with no strength and no one to rely on, and he struggles to survive in this unfamiliar land. Still, as they say, any knowledge can become useful somewhere. The skills he learned on the streets of Jongno begin to shine a ray of hope.

What fate will this ray of hope lead Jay to?