Any other monarch would have been offended by Hatori, but Jack was never someone guided by pride. He simply smiled at Hatori's request. He stood up and approached Hatori.
"To find out, you will need to be able to sense mana," Jack said. "Can you?"
"I can," Hatori answered.
"Good! Can you sense me now?" Jack asked after he came beside Hatori.
"Yes," Hatori replied.
"Hehe." Jack cast a spell. Soon, twenty of his copies appeared around the room.
Hatori looked around. He sensed Jack's mana signature in each of these copies. He couldn't tell which one was Jack.
"I requested a demonstration on mana concealment, not confusing me with a trick," Hatori said. His tone didn't mask his dissatisfaction.
Just as he finished his sentence, he found the blade of a glowing sword right next to his neck.