Ice Age Apocalypse, I have stockpiled billions of supplies

The world has entered the Ice Age, the Ice Apocalypse is upon us, and 95% of the world's population has perished! In the last life, Zhang Yi was killed by a person he had helped due to his kind heart. Reborn a month before the ice apocalypse, Zhang Yi woke up with a spatial ability and started hoarding supplies like crazy! Lack of supplies? He emptied a warehouse worth billions from a super mall! Uncomfortable living conditions? He built a super safe house comparable to a doomsday fortress! When the apocalypse arrived, while others were freezing and could give up everything for a bite to eat, Zhang Yi lived more comfortably than before the apocalypse.
The sweet innocent girl: 'Zhang Yi, as long as you let me into your house, I will agree to be your girlfriend.'
The rich second generation: 'Zhang Yi, I am willing to exchange all my money for a meal from your home!'
The beastly neighbors: 'Zhang Yi, you should share supplies with us, you shouldn't be so selfish!'
......
Looking at these people who betrayed him in the past life, Zhang Yi lay comfortably in his safe house, living a life like paradise.
Zhang Yi: 'What does your life or death have to do with me? I'd rather feed my stuff to dogs than give them to you!