After the skill Blood Manipulation evolved into Second Order, the formerly deep red rune became slightly lighter and gained some mysterious engravings. This rune, like all learned skills regardless of whether it was passive or active, represented what a skill could do and the information on how to use that skill was imprinted in the user's soul, allowing an existence to make use of that skill as if they had been training for a lifetime.
The power of Blood Manipulation grew to twice the previous and Bai Zemin also acquired a lot of information, which caused the number and variations of attacks he could make using the skill to increase explosively. After acquiring a lot of knowledge, his control over the Blood Manipulation skill was significantly higher than in the past.
Therefore, it was relatively simple for Bai Zemin to establish a safe perimeter.
Swoosh! Swoosh!