Star in my heart

Alex is training to become a Magical Guardian as part of the Royal family tradition. She must compete with her extremely talented sister and does not believe that she can win. Alex over hears shocking news about the prince of the enemy nation Sinseon and wants to protect her nation by all means necessary!
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"Rumor has it that the youngest prince of Sinseon is gonna get married to princess Elizabeth from the Western nation of Wagrean! If they marry, the two nations will team up and abolish the Nimphea and Easternon nations! Victory shall be ours, indeed" said one of the guards.

Alex stood there in shock
...How can that be?
...Maybe if he loved someone else?
...Maybe if he broke his marriage?

I know what to do.