I have Infinite shelter upgrade points

one day out main character John snow finds himself inside a room made of stone with a system

all he remembers is crossing the street when out of nowhere Truck-kun pats him on the head (if you know what I mean)

a system comes out of nowhere and feels him to build a shelter for future humans that will come after him

left with nothing else he could do he agrees, but as soon as he did the system got a error

Watch as our protagonist survives and goes crazy with nothing to do but press LVL UP SHELTER until he reaches the top.