Review Detail of jaydenz in Card Apprentice Daily Log

I had to stop reading around chapter 300, because around that chapter it started to be annoying and hard to read. the character appears as if it's the second mc, her name is corey with op skills and it's very easy to be strong compared to mc. What's more annoying is that it's very annoying to MC as if MC owes him tens of billions of dollars. the appearance of an enemy who behind is too strong and the power of manipulation is too strong, I wonder mc didn't die too early