"Long Fu" is a jewelry store owned by Shi Gandang Group, a famous local family. Under the leadership of Ming Xin 'an, the proprietress, Long Fu has been on the verge of bankruptcy and has become one of the best jewelry store brands. Smart heart is respected and envied by employees and peers in the store. Although the career and family behind the scenery have their own hidden worries, she is optimistic and positive.

The protagonist is a diamond designer.