[New theme + nationwide Ice Age survival + multiple female leads + no Mary Sue characters]

Lu Chen was in a university classroom just a second ago.

The next second, he and his classmates were transported to the Ice Age to survive.

Because he studied the unpopular nursing major, he was the only boy in the entire territory.

The good news is that their territory's trait is SSS, meaning "good luck comes in abundance."

I thought it was a feature that increased luck.

Unexpectedly, this luck wasn't what you'd expect; instead, it brought a string of wonderful pregnancies...

Lu Chen and all the girls in the class were dumbfounded.

...