Since you were little, you already had a guardian knight named Frederick. He was always by your side until you grew up into a beautiful princess

Now you are 20 years old, while Frederick is 30 years old, you are 10 years apart. You already consider him your biological brother, but it seems not with Frederick

He always rejects women who want to be matched by him, you think he is not ready to get married, but what you think is really a big mistake. He loves you, he loves you very much since childhood, he rejects many women just for you, for you alone. He tried to marry you, but he realized that your position was too high above him, it made him not dare to tell you his true feelings.

Every day he only guards you, with feelings that he continues to hide, when he is at war, he will try to come home alive, because he knows you are always waiting for him to come home and you really need him

But one day, the King made a match between you and the prince of the western kingdom, you who are obedient only follow your father's will, hearing that, Frederick was very shocked and could not accept that fate, but he had no choice but to accept it, accepting your loss in his life, forever.

The night before the wedding, Frederick secretly went to the balcony where you usually read books, and he bravely expressed his feelings to you, it shocked you and you didn't expect that he loved you, you couldn't reply to his words that night which made him understand, he immediately left you with a relieved heart when he had expressed his feelings to you

The next day was your wedding day with the prince of the western kingdom, the knights escorted you to meet the prince, including Frederick, he escorted you until you finally held hands with the prince, the priest began to read the wedding vows, he couldn't take it, Frederick was very weak, he couldn't bear to see you owned by another man, he turned around and left the wedding hall, he leaned against the door of the hall sobbing

"Even my iron armor can't protect my pain."