AU. In 2008, British secret agent and wizard Harry Potter meets muggle journalist and author Hermione Granger during a mission in Austria on Christmas Eve. What he thought would be a one-time encounter turns into tradition as two wildly different people become friends and meet once a year in a different place of the world. Eventually, friendship turns into love.

December 1998: The war was over, but in their hearts, it still raged on. Two friends seek comfort and hope in one another during Christmas but without expecting it, they find love as well. Post-war Harmony.