The Stone Age: the Survival Guide of the Insidious Physician

Muyang Lin Yu: I, a weak, helpless doctor with no hands, have no advantage at all in this primitive world, so... In order to survive, the Kingdom of Science? An empire of force? I want them all! Injuries? Die? Damn it! Crom: Ah Bai! Lin Yu relied on a few needles to knock down six or seven sturdy men on the opposite side. This was amazing! Khashoggi: Oh ho ho! Although the majors are different, it can still be seen that Lin Yu is a very powerful craftsman! Qianwu Huan: As a telepath, I seem to sense a lot of incredible things when facing Lin Yu? ? ? Watermelon: Wow uh uh uh! Brother Lin Yu showed a super dangerous smile! Yukyo: Dr. Lin is really a super kind person... Under normal circumstances? Bingyue: Lin Yu, I need your medical skills. Come with me to select humans! Lion King Si: Well, if it's Lin, there's nothing wrong with a little bit of science. You said you would never abandon me, Lin Ishigami Qiankong: I really don't want to admit that Lin Yu, that sinister guy, is my best friend. But if you join forces with Lin Yu, any problem can be solved easily by 10 billion percent! Concept: Stone Age, Soul Penetration, Black Belly, All Lin