Military Rank?

As soon as the meeting ended, Ria and Kai walked together to the top of the building. It seemed to be a serious matter since she acted a little suspicious like this, but Kai also felt that this matter would be closely related to the Protector.

"Teacher… What do you want to talk about?" Kai looked into her serious face. "Judging by your expression, it is either a serious matter for you or a grave matter for me. Else, you won't have this kind of serious expression."

"It's about you but not really a grave matter." She shook her head. 

"Then, it's going to be about the Protector?" Kai furrowed his eyebrows. 

"Exactly." 

"But I don't see the connection here."

Ria took a deep breath first as if she just wanted to mention a troublesome matter. "Why did you think you don't get Military Achievement this whole time?"

"You have been suppressing it, right?" Kai asked, recalling what Nathan said earlier.