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"It feels pretty lame," said Zheng Yichen, sitting on the motorcycle, slightly annoyed by the soul stored in the fishing rod.
The souls provided by Mental Aberration creatures weren't abundant, making Zheng Yichen feel like he had made a bad deal.
You see, normal souls are wrapped around by special powers, whereas Evil Spirits and Mental Aberration creatures are the reverse—power wraps the soul, and that power related to the mind is their body.
To collect the souls of these beings, Zheng Yichen had to first shatter their bodies, dispersing most of their power, before he could get to the actual soul.
The soul of the Mental Aberration creature he had killed, compared to its body mass, was about a hundred to one in ratio; the soul wasn't strong, only the powers related to the mind were formidable.