The World Freezes Over, So I Build a Shelter and Sell Everything

[Invincible Protagonist] [Relaxing Food and Leisure] In 3038 AD, a game called Divine Descent arrives on Blue Star. As it transforms into virtual reality, the entire world plunges into an ice age. Countless monsters and zombies arrive with it. Every human is bound to an NPC game guidance System bestowed by Divine Descent. Kill zombies, and you may get ability potions as loot and awaken supernatural abilities. But Gu Ran discovers that his System seems different from everyone else’s. It actually wants him to sell general merchandise in the apocalypse? Can a bottle of Coke increase an esper’s power? Can a bottle of Sprite restore 20% of an esper’s energy? And what about a phone with an extra-long standby time?