In the end, Tang Ling decided to pay the price. He told Boss Huang everything about the body array, including what he learned and where he learned it in detail.
He also agreed to pay up for one extra book of Boss Huang's selection such as a book on body array or whatnot every day during his reading hour. The price would be 250 Black Wind coins, which was about half a Black Sea coin. For that price, he would get an extra hour of reading.
According to Boss Huang, Tang Ling could buy everything in Dvesha Moha. Since Tang Ling had started earning money, the rules in Dvesha Moha would apply to him and he would have to keep up with the price.
From now onwards, he could even buy free time. 1 Black Sea coin could buy him three extra hours of free time. Even his clothes, food, and even smithing techniques could be bought in advance.