[you are 9 years old and he is 12 now] You and Rin live in the castle, You sisters...you thought...until you overheard Rin's conversation with his father

Rin's father: "Don't let her know that our kingdom is the one who destroyed her hometown, okay, Rin?"

after you heard that you fell silent. your tears flowed and you ran to your room and locked the door, you looked in the mirror and planned to take revenge when you grow up,Suddenly Rin knocks on the door Rin: "Hello? Is there anyone?"