Bickering

Ruby smiled. "Thank you."

Riya nodded and after talking a few more words to Ruby, she left.

Professor Brown was still there but he didn't interrupt Ruby and Riya's conversation in the slightest bit. He was listening on the side and Riya didn't tell him to go, which meant that she agreed with his presence. 

"Teacher," Ruby called out.

"Go and prepare…Also, you have a good friend, Ruby. Treasure it." Professor Brown patted Ruby's shoulder. 

Their research institute also has some cool talisman, which made their workplace cooler and more comfortable. But for some researchers, what they wanted the most was to disassemble the talisman so that they could know how it work.

When they knew that it was only drawn by mana and magic beasts' blood, they were shocked.