DB Vol 6 Part 2

Every Esper strives to create their own special technique. Even with the same ability, one must have a certain uniqueness to stand out and be recognized. Once they develop a special technique using their ability, they practice and practice again so that no one can replicate it. Naturally, if the ability itself is special, the ambition to master it is even greater.

Chief Jung didn't entirely fail to understand the greed of the Oh family. It was just that it was too gruesome. It seemed certain that they had spent generations conducting experiment after experiment to see exactly how far they could push the limits of cutting and utilizing their own bodies.

“At this level, it’s almost a waste to classify it as a simple recovery ability.”