Bab 158: System upgrade 

Di looked at Frank with a coy smile.

He didn't really know why Frank needed what he had sent him to get, but he had asked him to do it, and Di could not refuse.

"Knock, knock," Di gently knocked on the hard wood of the floor they were seated on, causing a section to rise up a little bit.

He then stretched out his hand and lifted up the plank, revealing a bag.

Frank nodded and stretched his hand out to pick up the back.

But before he could take it out

"Slam" Di closed it.

"What?" Frank asked Di with some confusion in his tone.

"You realize what I had to go through to get this, right?" Di inquired from Frank

"Hm," Frank nodded.

Frank had investigated several places with energy crystals and ordered Di to go to those places and recover some of those crystals.

And he did just that, but in the course of doing so, he set several military outposts on high alert.

In fact, they were still looking for traces of Di even at this moment.