Rustle... rustle...
The quill raced across the Book of Demons until the final punctuation mark fell.
Aaron let out a long breath and poured the Abyss Pathway Sequence Six Demon potion onto it.
The black liquid swiftly seeped into the pages as if nothing had happened, yet the Book of Demons had genuinely risen by one Sequence.
"Digest the potion properly first! Once you've completely digested the Demon potion, I'll let you take form."
The Book of Demons immediately conveyed a surge of joy, and the entire book began to tremble.
"Don't celebrate too soon. Advancing from a Sequence Six Demon to a Sequence Five Apostle of Desire requires undergoing a brutal ritual: serial murder.
"Each time you kill someone, you must eat the victim's internal organs. From then on, you'll remain in a state of violent bloodlust, constantly wanting to hurt others, until that desire is satisfied again.
"There must be at least three days between each murder, or you'll easily suffer Loss of Control. But the interval cannot exceed nine days either, or the ritual will reset. At minimum, thirteen people must be killed; at most, forty-nine.
"The more people you kill, the more complete the ritual becomes, and the greater your chances of advancing." Aaron explained patiently, though even he could barely stand the thought of it. The Abyss Pathway was truly abnormally twisted.
The upgrade package the system had given him contained the materials required for the advancement rituals of every divine pathway, but it did not include living lives. In other words, for the Demon to advance to Apostle of Desire, it had to kill people—at least thirteen of them.
"I'll give you two choices. First, give up on advancing to Apostle of Desire. In exchange, I'll give you a Flame Demon's heart, a portion