PLOP!
A strong wave of coldness and baleful aura surged into the hearts of the seven of them at the same time. Among the seven was also Yu Ziyun who had been caught off-guard as well. He had not calculated that Xiao Ming's strength would take such an astronomic rise just as soon as he entered the Primordial Mortal Soul Stage.
The seven of them knelt down rhythmically as the dense aura pressed down on them. Xiao Ming by himself was less threatening but the dark blade's phantom on his hand was responsible for the coercive and will-smiting feeling that befell the seven of them.
The dark sword phantom went without saying was the form of one of Xiao Ming's nine sword spirits. After his gains, Xiao Ming found out that he could summon the sword spirits in the form of phantoms. It would take him a further step of cultivation to the Immortal stage before the swords themselves could take on actual forms and be materialized.
