Ke Xue: I have a knife, and you still dare to fight me?

Suddenly I found myself reincarnated into the world of science. Fortunately, I drew a card before reincarnation, so I am not worried.
Then let me take the title of the great swordsman in the world of science.
……
Facing the flying slash from the sky launched by Kurokawa Saki Tsuki.
The scientific view that Haibara Ai had built up over the years was completely shattered.
Huiyuan Ai: "The world I live in is not scientific at all!"
"But then again, I want to learn this kind of swordsmanship too!"
……
Vodka: "Brother, what should we do if we run into Kurokawa Qiyue?"
Gin: "If he goes out without a knife, he only has a fifty percent chance of winning against me."
Vodka: "Where's the knife?"
Gin: "Idiot, I wouldn't let him touch me if he had a knife!"
Vodka: "..."