User blog comment:KatDWolf/Idea for Hetalia Children's Story/@comment-1826286-20100918033551/@comment-2241574-20100918035746

Based on Haruhiryu's comment, you should talk to your teacher about your idea and make sure you get permission (better safe than sorry). Perhaps there's a way for you to use your idea without treading near the issue of plagiarism...though I assume you haven't reached post-secondary education yet?