But that time must have been very, very long. After all, it has been nearly five hundred years since I mastered the sixth form. Counting the acceleration of time, it has actually been tens of thousands of years. Ji Ning already felt ignorant and understood the seventh form of the Wuming Swordsmanship. It is very, very difficult to understand it thoroughly. If this continues, it will probably take a hundred times a thousand times more time....