「石」が生活の中心にある世界。とある地下集落を訪ねた鉱石職人の朱星は、左足が石化した少年と出逢う。3本線のピアスをした男を探す彼にはある秘密が…!?磨き磨かれる師弟の、家族を救う旅が始まる！
A world where “stones” are at the center of life. Zhu Xing, an ore craftsman who visits a certain underground village, meets a boy whose left foot is petrified. Finding a man with three-line pierced earrings He has a secret …!? The journey to save his family begins with his master and pupil being polished!
