Chapter 332 - Trying to breakthrough 

5 June, Sunday, 11:00 a.m.,

You can see that Sam was now busy fighting his robots. Two days ago he came back from the Dungeon and yesterday after resting today he finally decided to train once again. He now said the power limit of this robot's early C-grade. But it was like the difference between peak D-grade and early C-grade were completely different. Even after fighting for this long he wasn't able to land any hits. You can say that it was exactly the opposite of those two robots all the time beating him. He was not even able to fight back with both of the robots. 

If you are wondering why he set the limit of both of the robots to early C-grade, then it was because he wanted to know the power behind early C-grade warriors and monsters. Actually the next Dungeon he will be going to is a C-grade dungeon. The next Dungeon has 5 floors and from the third floor he will meet C-grade monsters. Because of this he decided to get familiar with the power of C-grade.