Majo no Shikkounin

Witches who defy the law must face judgment. 150 years ago, witches descended from the moon, and ever since, this country has promoted and fostered a deep bond between them and its people. However, not all witches abide by the law. Chosen from their own ranks, an “Enforcer” brings them to justice. Among them is Witch Natalia, who one day encounters a boy afflicted by a curse...?!

(Source: Manga Plus)