Professional

The pupils of Botis's eyes had already turned deep black, and they were frozen in a look of indescribable fear. It made Klein's heart palpitate when he saw it, as though he could feel the intense changes in Botis's emotions before his death.

After a series of inspections, together with "divination," he confirmed that these two eyeballs didn't contain any Beyonder characteristics, but they contained a strong corruptive force and a power that came from an unknown source. It could be used as a medium for curses, and it could directly affect the target. It was a rather dangerous spiritual material with an extremely long "expiry date."

I can't bring it with me for extended periods of time. Otherwise, I might be weakened mentally, have nightmares every day, and suffer a physical mutation… Klein casually summoned a square metal box and placed Botis's two eyeballs into it.