あらすじ
A world where "stone" is at the center. Akaboshi, an ore craftsman visits an underground village and meets a boy whose left foot is petrified. The boy's goal is to find the man with a three-line piercing but he holds a secret...?! The two of them set off on a journey to save his family!
あらすじはAniListより（英語）。
プレビュー
本作のPV。