Review Detail of BigiNove in Earth's Greatest Magus

I will give it 5 Stars as an early review but there is something I don't really like or I would said something I don't enjoy reading in this story. They are fillers which are not really fillers; some theories which are uselessly long, well explained but somehow you can still enjoy the story to the fullest even if you skip them; somethings which are not a filler because there is place for them but feel like fillers when you read it. Hard to explain but 5 stars nonetheless