Inala worked in a hurry, extracting as many of Wittral's Spirit Containers as possible. All these Spirit Containers only contained one Prana, but that was enough. Inala currently had approximately twenty thousand Free Human Spirit Containers.
Through the Prime Skill of Spirit Container Assimilation, they could be converted into twenty thousand of Wittral's Spirit Containers.
Whether it be extracting the Spirit Containers of Free Humans or Wittral's, only Inala could do so. It was because the Prana signature of anyone else would cause hindrance to Gannala.
He was her parent and due to the Mystic Path shared between them, not to mention the Empyrean Tusk—Mammoth Clansmen relationship, the Spirit Containers would remain in a state beneficial to her.
That was why he couldn't make the Empyrean Zingers harvest Free Human Spirit Containers from other islands. Had that been possible, he would have finished his work within a day and could be chilling right now.