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This scroll was a kind of tool, considered an extremely rare and precious treasure.
In Zi Liyuan's possession, he only managed to obtain five Fourth-tier Time Acceleration Scrolls, which he had been reluctant to use, saving them as supplies for his entry into the Divine Demonic Tower.
As for the tool to modify rules, he had not managed to obtain any.
Such items were extremely rare and, under normal circumstances, others would not offer these treasures for sale.
While on Blue Star, even with transactions with the Great Xia Empire's military, official agencies, and the Dragon Academy, this kind of treasure was never presented to him.
The premature monster siege, although disrupting Zi Liyuan's plans, was not a significant issue.
What needed to be prepared had, in fact, already been prepared; the only thing perhaps not ready was the Blue Star Lords who had just allied with him and moved their Lord's Mansion to this location.