Koiki and his friends were the management OSIS of Jigami school. They received a task from the mother of the principal to look for treasure. Evidently, these children had a strength that for a long ti...more

Koiki and his friends were the management OSIS of Jigami school. They received a task from the mother of the principal to look for treasure. Evidently, these children had a strength that for a long time has been hidden. A necklace leontin that uptil now...