"The reason you feel such agony when using the 'Unseen Hand'..."
"Is fundamentally because the 'Sloth Witch Factor' only sees you as an 'unsuitable vessel.'"
"So you need to establish an 'equal footing' with it, or else a 'cooperative relationship.'"
"But!"
Zeref's tone shifted, growing serious.
"There are two problems here."
"The first is the price black magic requires you to pay."
"That price is—you must regularly offer it 'sinful souls' as sacrifices, thereby increasing the 'Sloth Witch Factor' within your soul."
"It will be fine at first, but in the future, as it grows more and more numerous, even surpassing the upper limit you can endure, it will affect your will."
Zeref said meaningfully, "For example, you might become as insane as Petelgeuse."
"When that time comes, we will need to find a way to reduce it or balance it."
"Sacrifice sinful souls. Become insane..."
Natsuki Subaru swallowed, instantly growing nervous.
Fortunately, he had already been mentally guided by Aizen before.
In order to better protect and help Emilia and the people around him.
He was destined to get blood on his hands in the future. He could no longer be a naive high school student.
And besides, it was only killing a few villains...
"No problem!"
"As long as it can make me stronger, however many scumbag souls you need, I'll give you that many!"
"As long as you have that resolve." Zeref nodded as he spoke.
"The second problem is that these 'Witch Factors' clearly have owners."
"If I forcefully sign a Black Magic Contract with them, it is very likely to draw the other party's attention during the process."
Unexpectedly, the moment he finished speaking, Aizen spoke at just the right time, smiling. "There is no need to worry about that. We have already confirmed that