Itsuke return to his home after copyiny the external soul bone obtained from tang san by killing man faced demon emperor for his third soul ring.
Itsuke aborbs the external soul bone and store the remaining external soulbones in small world and kept the remaining external soulbones in the places where all the immortal herbs placed because external soul may mutate due to various elemental energies gathered by immortal herbs.
After placing the external soul bones in place where immortal placed and returned to his house in soto city and before returning to house itsike tries ability of external soulbone and the ability of external soul bone is devorinng and it has potent poison of man faced demon emperpor and age of external soul is only is three thousand years.
External soul bone increases its age by improving the soul power of soul master and because of itsukes cultivation of peerless titled douluo with god king level soul strength then the age of external soulbone is increase its external soul soulbone age is increased to million years.
Because of increase in soul age of exernal soulbone to million years then the abilites external soulbones also changed and the changed ability of external soul bone is innate devoring and it has no limitations and can be used to devour the obects or soul beasts or human or demons up to the the d level of his strength that means he can devour any god king level beast or human or demon or herbs or anything.
And poisoned abilted of external soul bone also changed and the changed ability of external soulbone is poisend immunity and poisoned concentration increase and can poison and god king level being and double god king strength level poison immunity.