Onigokko!

On the legendary island of Miyajima, phantom thief Ura finds his reputation destroyed by a mysterious impostor. The island is home to three prestigious families descended from Japan's greatest heroes—Momotarou, Kintaro, and Otohime—sworn guardians of Mystical Treasures and eternal enemies of thieves. Their high school descendants have vowed to capture Ura, but fate has made them classmates! Join Ura on a thrilling journey to expose the real culprit, build unexpected bonds with his rivals, and uncover secrets hidden for centuries. Japanese mythology meets high school adventure in this tale of deception and friendship.