Fifteen years ago, the knight Kirhi rescued the princes who had been taken as hostages by a neighboring country. Since then, Kirhi secretly held the Second Prince, Sien, in his heart and swore to protect him. For Sien alone, he resolved that he would abandon even the honorable position of captain of the knights, and all his loyalty toward the First Prince, Sona… “Regarding your actions to follow my brother, can you swear that there is not a shred of shame as a knight?” The feelings that must never be revealed were shown to the one person he could never let see them.