For the Princess, I Must Draw My Sword Immediately!

"Report! The princess was robbed by robbers!" "What!? I must draw my sword immediately!" "Report! The princess was kidnapped by the enemy!" "What!? I must draw my sword immediately!" "Report! The princess has ascended the throne and become the queen!" "What!? I have to... Oh, no need to pull it out now." ... One morning ten years later. The moment when the queen comes to the world and holds the coronation ceremony. She was so bright that she would definitely think of the letter that was personally sent from her hand ten years ago today. It reads: "Our family has fallen, great knight, I need your protection."