Gakuen Hetalia (学園ヘタリア, literally Academy Hetalia or alternatively School Hetalia) was an unfinished dating sim project by Hidekaz Himaruya, first released as a demo on January 11th, 2007 and based off of his Axis Powers Hetalia series. In this alternative universe game, the cast are all in their teens and attend the multicultural private high school, World Academy W. The player character is Seychelles, a new transfer student.
A commercial version of the game for the PSP engine is slated for release in later 2010.
Source: Hetalia Wiki
IMPORTANT:
The uniform should be plaid pants/skirt with brown vest or sweater and blue/red blazer. As seen in this: #178717
Use this tag instead of Axis Powers: Hetalia if the picture indicates it.