Transmigrating to Fall in Love with Laozi

New Primordial-Era Novel With Two Male Leads

I want to read something like After Reincarnating into the Primordial World, Taiqing Seems to Have Fallen for Me. I only want Primordial World novels. Don't recommend anything else.

Stories With Two Male Leads Who Transmigrate to the Qin Dynasty or the Three Kingdoms Period and Fall in Love With Historical Figures

Primordial World, Two Male Leads

I'm looking for a prehistoric fantasy story with two male leads. It's been ages since I read one, and I'm itching for a good story. Please recommend one if you know any. Thank you!