"After his sister died, he continued with his research into crafting an art that could help improve the grade of one's foundation pillars.
However, after he broke through to the core formation realm, he pivoted the idea and began focusing on improving the grade of cores instead.
His rationale at the time was that if the art could work on a core, then it would most definitely work on foundation pillars," Xia Cangfu continued.
"What was the grade of his core?" asked Yang Qing. "Given the pillars you told me he formed, surely it couldn't have been a quasi-gold grade core like Xia Fang believed?"
"You're right. It wasn't a quasi-gold core, but a quasi-purple core. Bar the one gold-grade pillar he formed at the start, all his other pillars were purple grade," Xia Cangfu explained, pausing slightly before continuing with the rest of the story.
