About the Different World I Was Reincarnated into Was Actually Ancient Times

When he was reincarnated into a different world, he discovered that it was the late Han Dynasty in ancient times, and uprisings continued all over the place. Hey, why is there an elf girl with long ears, white skin, yellow hair, and blue eyes? Is this ancient times! ? It seems that we have entered a strange world. Will it enter the Three Kingdoms in the historical order? What role does the protagonist play in it, and how much will his appearance change it? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.