I like the idea and the worldbuilding from the introduction was great!
Unfortunately I couldn't figure out how to get the unicorn to reach the flags, no matter how I angled it...
By the way, the pale green text on the orange background isn't easy to read from an accessibility perspective. You can use colour contrast checker tools (online and free - e.g. the one by WebAIM) to check if your text colour scheme is accessible to visually impaired readers!