Within 3 days inside Wu Di's Mental World, Sheng Tian had managed to completely memorize and draw all 99 elementary formation runes. And while Wu Di may berate Sheng Tian for the lightest mistakes in the brush strokes, he was impressed yet again by the speed at which Sheng Tian learned.
For context, the average person might take a month or two to learn all the elementary runes. For a talented person, they might take a week or two.
This does not include mastering how to draw the runes, or the intermediate and advanced runes.
Yet in just 3 days, Sheng Tian was close to mastering the 99 elementary runes.
Wu Di secretly sighed. When he was learning formations, it had taken him just under a week to memorize and start drawing.
Weng!
Sheng Tian's hand moved swiftly, drawing tens of runes in under a minute. The gold runes floated in the air in a specific pattern before lighting up.