I can only cast [Barrier] and my mana is only 100?!

Claudius Hollow reincarnated in some novel he read some time ago, the problem is that the novel he reincarnated is one of the 99+ novels he had open on his phone that he read in one go until he caught up with the translation of the novel. Since the novel was in another language and the Machinima translation was less than readable he had no choice but to wait a month or more for the free update since he was not in a position to pay 20 bucks for a 1500-word translation.

One thing is for sure, he is not the main character...

PS: I will post the same story on Wattpad to reach more people