Nothing major happened in the last few days, so Billy used that chance to grind as much as possible. That being said, Billy leveled up many times in the last few weeks, so the tyrants only granted him one thousand experience points per kill now. It was a bit bothersome, but it couldn't be helped since the fights were that easy for him and for his summons. Fortunately, the experience that he gets using his powers never changes and the mana that he gets with each skill only increases by the level, so it was fine for the time being.
"I guess the best way to counter this is to reach the lower levels of the dungeon where the monsters spawn stupidly fast," Billy thought.