The Soul Clan's slave seals were rather complicated.
There were two requirements to break the slave seal. The first was that only members of the soul Race could break it. No other race could break it.
Second, the slave seal of a slave could only be broken by the master. Unless the master died or the master did not control it, other members of the soul Race could break the slave seal.
Su mo was now Bai Xiao, and his body and spiritual soul were both of the Soul Clan. Di ang was dead, so he could break the slave seal for chengfeng and ning piaoying.
Their slave seals were in their sea of consciousness. It was a miniature seal condensed by the soul power of the soul Clan.
Su mo easily removed their seals and was free.
"Sect ... Sect master su, I, chengfeng, am extremely grateful!"
After that, chengfeng cupped his fist and saluted su mo with great respect.