Chapter 367: Cunning System

'Huh?'

As soon as he was transported into the inner world, he started checking all his elemental spirits and spirit beasts.

'I can't use on them either,'

After observing all the beings in the inner world, he shook his head as he could not use the essence of nature on them to increase their strength.

As for why he could not use them for level increment was because all the beings in the inner world had already crossed or reached the commander realm or rank 3 strength. 

When the system was upgraded, it changed the breakthrough conditions for commander realm and above realms and limited the breakthrough only through the energy orbs that was given from completing the higher danger rating system missions.

His latest contracted elemental spirits also had reached the elemental spirit commander realm and excitedly looked at Ajax as though they wanted him to summon them out of the inner world for a while.