Emperor level mage

Everything seemed to stop as the cold voice sounded. 

As everyone moved their gazes toward the source of the voice, and saw three people hovering in the air above the mansion. One old lady, a cute young girl and a middle-aged man in golden white robes.

A solemn look appeared in the masked man's eyes when he saw them, while Dean and Count Wiley stared, aghast.

Why?

Because the voice was directed at the trio. What did that mean?

It meant that them coveting the sword had angered the old lady—who apparently was at least a five-star mage or stronger since she could fly—because based on her words, the thunder sword was her family's heirloom sword.

Furthermore, all three of them recognized the middle-aged in golden white robes with a crown on his head, standing submissively behind her.

Wasn't this the current king of the Green leaf kingdom, an almighty six-star mage? Why was he standing there like an obedient servant?