An Immortal Path Scientist, Starting with Harvesting Cultivators' Kidneys

[Before you read: The protagonist is an absolute monster. His actions include, but aren't limited to:

Roasting people until their meat smells delicious; addicted cultivators going wild for pills;

Forcing women into dual cultivation; castrating princes and killing true dragons.]

Science. What is science?

Science is a systematic body of knowledge and a method of inquiry that uses observation, experimentation, and reasoning to understand the laws and phenomena of the natural world.

Then cultivation must be a kind of science, too, right?

The bodies and souls of cultivators, spiritual energy, magical treasures, pills, and even the sociology of the cultivation world are all parts of the greater system of cultivation.

So you can call someone like me, who studies the science of cultivation, a… Cultivation Scientist.

But why are you all afraid of me?

I just think you're interesting and want to study cultivation together with you. What's there to be afraid of?