Leaving

"Please allow me to explain the full details of this machine's true potential." 

Noel squinted his eyes, contemplating his schedule. It seemed that this machine was much more important than anything in his current schedule, so he nodded. "Alright."

"Thank you, sir." Felicia raised four fingers. "Basically, it can be summed up into four things. First of all, if we can somehow integrate this machine into our own rune technology, we will know when we should recharge the demon crystals."

"Are you talking about the Rune Card?"

"No, Sir. I'm talking about all inventions. For example, if we can somehow put it inside and know how many points we have left, we will be able to know when we should recharge the demon crystal. If there are only two particles left, we might have to get a new demon crystal in case it stops midway. This will give a better understanding of the people's trip and so on."