Resolved A apocalypse novel.

I am looking for novel that i think is called end of the days. I bengun reading but end up dropping and now i want to read it again.

Well obviously the name is wrong but it should be close. I remember the following of the plot:

1 - mc has a cheat item that let he go to the end of days.... a future and more technologyc advanced .
2- this future lack for all the technology basics like food and water and he use that to buy tech that he can sell in the present
3- he hire a crazy woman mercenary and become involved with her in the future
4- he hire his former boss that fired him to be the adm of his enterprise in the present.


Thanks for the help.

 

I Have a Mansion in the Post-apocalyptic World

 

I have a mansion in apocalyptic world

 

I have a mansion in a post-apocalyptic world

 

yep, I Have a Mansion in the Post-apocalyptic World.
https://www.novelupdates.com/series/i-have-a-mansion-in-the-post-apocalyptic-world/

 

Thanks for the help. That is it.