It was a difficult formula. Fortunately, Gu Xijiu had learned it before so when The Lord read it, she could immediately understand it.
She did not know what the usage of this formula was. She used to use this formula to train her inner strength but it did not help, so she did not practice it on regular days.
However, now when The Lord had read it, she tried to mobilize the breath in her body following the formula. After finishing a cycle of breathing, she felt that the sharp tone was not harsh and she had no hard feelings towards it anymore.
She never knew that there was such a function with this formula. It could actually eliminate the interference of noise during the fight.
Gu Xijiu was relieved and she looked at the battlefield again.
It was a tense fight on the battlefield. There was all kind of flashlights issued by the sword and spiritual power, which dazzled anyone who looked at it.
