Before I Was Reborn in the Apocalypse, I Fled Back to My Hometown in the Countryside Overnight

In a Word, the Heroine Is a Lone Wolf in the Apocalypse

Requirements: The heroine has no CP and is very powerful. She can have pets, but not teammates. She can enter the base, but cannot stay in the base all the time. Then she cannot encounter too many top-notch monsters. The number of chapters cannot be too many, no more than two or three hundred chapters.