But before I even think about upgrading to the Iron Stomach I needed to upgrade to the Copper level I needed to upgrade to Iron, but to do that I need to absorb a total of 1,000 Lower Tier 1 Void Essence.
I spent a few days refining the void essence, in preparation to upgrade to 'Iron Stomach'. After a week of preparations for breaking through to 'Iron Stomach' I was finally ready to do it.
I was riddled with anticipation, but then soon calmed down as I have yet to advance.
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After resting for a few days I sat cross-legged and then proceeded to follow the instructions in the manual, the process had similarities to the 'Stone Stomach' level. But this process was more difficult as I had to refine more vitals than my stomach such as my liver, bladder, etc. as I couldn't just have my stomach to be strong and all of the other entrails to be weak during the refinement of metals and such.
The pain during this process was 2 times compared to the Stone level, there was more damaging done to my organs and so I had to refine more of the Void Essence in the surroundings so that I could heal at a faster speed.
The process of the copper level was more difficult because I had to pay attention to my other organs as well as my stomach and had to send Qi to them while they were being deconstructed by the barrage of a portion of my Qi while the other portion was healing them.
Every second there would be cracks and bruises left behind, but I kept healing them as soon as I had noticed that was happening.
This process continued on for about 6 hours until I finally couldn't do any more damage to my entrails. After the processing there was a slight copper tone to my entrails that further enhanced the strength of them.
The "Sacred Art of Devouring" would be able to absorb poisons as well as metals and I wouldn't be harmed in any way, which was why I needed to strengthen my body to the proportionate degree of the cultivation manual.