Global Catastrophe but I Have a Shelter

Global catastrophes occur, the world pattern changes, world order collapses, countries perish, and humans face the danger of extinction. Meteorites, ice ages, animal catastrophes, human catastrophes, you can't imagine it. There is nothing that does not happen in this world. Humanity's wildness is triggered, and moral values ​​no longer exist. The protagonist is like an alien, existing in this world. Men can't stop laughing and women can't stop crying. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.