During the fight with the demon, a ring suddenly appeared and release huge energy to defeat the demon. After healed by Grandpa Ginkgo, Prince of Ye found out he can saw the monster now.
I understand. Farewell, Your Highness.
فهمت. الوداع، فخامتك
Jawohl. Auf Wiedersehen, Eure Hoheit.
Comprendo. Con permiso, Su Alteza.
Bien. Veuillez m’excuser.
Certo. Ossequi, Altezza.
Sim. Adeus, Vossa Alteza.
Я понимаю. До свидания, 
ваше высочество.