Master of Books

I'm a good and helpful person, in my previous world and even the second one. I often help those consumers on my books store that needs some help but... What is this? They suddenly calling me with different titles. "Master of Sea Emperor's" "Shinobi God" "Hidden Octagram Member" "8th Sin" **** Note before you read: I don't have an Editor and English is my second language so expect grammar/spelling mistakes here and there. Warning: Contains Dark elements. *If you like the story, give it some stones and i will try to write a bonus chapter for you.