Rebirth After the Doomsday, After Hoarding Enough Supplies, I Just Want to Throw Them Away

[No system + no harem + rebirth + growth + humanity] Reborn at the end of the world, Lu Ziyang learned the lessons from his previous life and hoarded supplies as much as possible just to survive. But human nature in the last days cannot stand the test at all, and there are many doubts behind the sudden zombie crisis. Under the dual crisis of zombies and human nature, how can he reverse the situation and save the people he cares about?