Opening a Hotel in the Apocalypse: I Will Kill People Randomly

[The end of the world + ruthless people + revenge on the spot + decisive killing + hotel construction + invincible system] Su Nianyin never imagined that she, who died of overwork in 997, would be reborn in the apocalypse five years later. She thought she would burp again, but unexpectedly got a hotel with an invincible system. System: You will not be punished even if you are a salty fish in the hotel. Su Nianyin: Is it really invincible? System: Yes, distinguished host, you represent order here, please feel free to expand your territory! Su Nianyin curled her lips and started to run the most invincible hotel with the most complete entertainment facilities in the universe. Visitors staying here can enjoy endless food, wide sea view rooms, KTV, giant screen cinema... It is simply a paradise in the end of the world. Here, you are protected from zombie kisses, but there is only one taboo. That is, don't mess with the host Su Nianyin. Otherwise, the bones will be crushed and the ashes will be used as fertilizer for the flowers. PS: The male protagonist will appear in the later stage, with a dark belly and an alien face.