Day and Night

This is my first time writing, so my writing style may not be very good, so please give me some advice (feel free to criticize me), and it won't be very long. A large number of unknown black hole-like things suddenly appeared all over the earth. Ling Gan and many people were unfortunately sent to another world. Ghosts and gods awakened, and they fought for hegemony in troubled times. Who caused all this...