children_of_the_rune
Korean title: 룬의 아이들 (Rune ui Aideul)
English: Children of the Rune
Japanese: ルーンの子供たち
Chinese: 符文之子
Korean fantasy novel series written by Jeon Min-hee. It was derived from Softmax's 4LEAF.
Tales Weaver is an adaptation/remake of the novel.