The deepest layer of the Tenth Abyss.
Art, infused with golden liquid throughout his body, was gradually engraved with the word "Madness" in the deepest part of the Swollen Cathedral.
Even though Art actively chose to embrace this epilepsy, the carving process was extremely difficult and slow.
After all, once the carving is complete, all the cancer cells will lose their former absolute freedom, and the Tumor Emperor's divinity will be stripped of its initiative.
The most basic fragments of genes within Art are organizing as much protein as possible during this process.
The communication between William and Art seemed 'friendly', but only in terms of wording.
In essence, this is education, and it's professional education conducted face-to-face, one-on-one by William.
No matter how this process is beautified, it is the 'punishment' of the victor to the defeated.
