Fa Nu Ying, Mulan's older sister has to go to the matchmaker. Her younger sister goes with her, when they failed the test. Their father is being called to the army to fight the Huns. When Nu Ying and Mulan in the place of their father go in the army, they unexpectedly fall in love with the General and a prince who's from Scandinavia. This is a Mulan x Yu-Gi-Oh GX Crossover.