Living in an orphanage in the countryside town of Clade, Leon is a sincere young boy who diligently cares for the younger children. The world is engulfed in war. Though Clade's rural location has largely kept it safe, one day, Leon notices a national army soldier passing by whose face is identical to the robber who broke into his house and murdered his mother six years ago. "But I thought the criminal was arrested..." Doubtful of the truth behind the incident, Leon visits his old family home. There, he accidentally touches a magic circle in a hidden room and faints. Upon waking, he has awakened to the memories of his missing father and a special ability: the skills of a "Thief." Leon's father was the greatest thief of the century, and he left the magic circle to "inherit" his knowledge and skills to his son, Leon. Now, Leon resolves to use this newfound ability to join the national army to uncover the full truth of the crime.

Original Webtoon:
dbook, LINE Manga

Official Translations:
English