Yurisangja is a South Korean male duo formed in 1997. They are best known for their pop-ballads."Yurisangja" (유리상자) means "glass box." The reason they chose it was derived from their hope – the one of putting in it the most precious things of the world. Because a glass box is transparent, as far as something valuable is put in that box, it can be seen, undistorted, from the outside. They wanted to show people the most precious and beautiful things of the world as they are.