Mortal: I can unlock the card pool by becoming an apprentice to him.

My body just can't take it anymore. My job is a 12-hour workday, and after get off work every day, I barely have any free time to update my chapters. You can see from my chapter update schedule that I often stay up until 2 or 3 AM, and then get up at 6 AM the next day to go to work. Three or four hours of sleep just won't do. Please give me some time to recover.