My Apocalyptic Grocery Store

(This book is a hard-core martial arts novel, with superpowers and no zombies) Traveling through the apocalypse, there is no passion, struggle for hegemony, or super gods, only a grocery store. Sell ​​arms, vehicles, food, medicines, books, whatever the system gives you. Repair weapons, repair tools, repair home appliances, repair... The system will guide you to repair everything you can. Collect money, collect precious metals, collect mutant organizations, collect..., The system will accept everything that will give 404 The daily life of a small grocery store owner in the post-apocalyptic world