Even when relying on a human's Life Magnet Field in a relatively suitable environment, it would still gradually fade away, just at a slightly slower rate.
It's unclear whether it was due to technological limitations or the need to preserve the "Pseudo-Martial Dao Will" for extended periods.
The Black Blood Federation chose a different technical solution, based on the principle that Matter Fields can assimilate one another.
This was even more true for Extraordinary Metal and processed resentment.
The Black Blood Federation used the latter to assimilate the former, which could also be seen as inscribing the resentment into the Matter Field within the Extraordinary Metal.
This was the truth behind the Blood-colored Chip.
'That makes things much simpler, then.'
'All I need is the Secret Technique, Evil Tiger Carrying Corpse. I have no shortage of Spiritual Energy or resentment. After extracting the code, I can just copy it directly.'
