As such, Huang Xiaolong entered seclusion once again.

The first time he did was to completely refine the Immemorial Sword.

Since he obtained cosmos energy after breaking into the Primal Ancestor Realm, refining the sword became much easier than before. It only took him several days to gain complete control over the sword.

Once Huang Xiaolong were to gain control of the Immemorial Grand Formation, and he appeared in the outside world, even late-First Esteem Dao Venerables would be hard-pressed to escape from the Immemorial Immortal Cave if they were to be trapped inside it.

After he was done with the sword, Huang Xiaolong swallowed the grand dao pills and grand dao...