Wizard of science

A collider accident caused scientist Li He to travel to a foreign castle and become the fourth adopted son of the Blood Countess.
His family is full of witches. The eldest sister is very strong, the second sister can fly, the third sister can transform, the fifth sister can speak bestiality, the sixth sister can control fire, and the seventh sister can walk through walls. Only he is an ordinary person.
In order to analyze this unscientific matter, he made a bunch of technological creations based on his past life memories. While analyzing, the charm of science conquered almost all the sisters, except... the Countess.
One day, the countess suddenly disappeared. The gate of the castle was blasted open, and a group of people rushed in holding the magic sealing stone, saying that they were demon hunters and wanted to hunt witches.
Li He put down the test tube, picked up the magic gun, and frowned: "Are you serious?"
This is a story about using science to analyze magic.
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High IQ, no system.
The three-million-word version of "Technology Wizard" with the same theme has been completed. Welcome to read it.