This imaginative journey into the world of numbers invites readers to see mathematics through a fresh lens. Long before arithmetic became a cornerstone of education, early civilizations struggled to grasp its mysteries, shaping the powerful ideas we know today. That ancient struggle gave rise to the conflict within Arithmetic Island. Existing in collective human consciousness lies a mysterious island. Home to creatures known as dots--beings born from the mathematical concepts of humanity's imagination. The island is divided into five domains, each containing artifacts of immense power. These artifacts fuel the dots' greatest hopes but also awaken their darkest fears, threatening the fragile balance of their world. Follow Eulalia as she embarks on a daring quest to unite the fractured domains, confront the ancient evils they harbor, and uncover the true nature of the forces that shape their existence.