It's the end of the world, what's the use of giving me the Cao Ze system?

Chen Kang died suddenly from staying up late and traveled through time, suddenly arriving in a doomsday world full of dangers.
Zombies, evil spirits, ferocious beasts, heretics, and man-eating monsters are everywhere.
But fortunately, the system was awakened at the beginning.
It’s just that this system doesn’t seem very serious…
What's even more indecent are the people in this world.
Zhao Xiangru, Shugen’s wife, the village chief’s wife…
Xiaomei, Yaoling, Zhaodi, Wang Sao?
There's even Paladin Rika and Sister Inlisa...
"That's not right. Why is this all the butter section?"