By the time roughly one week of living in the Sanctuary had passed, I had amassed a rather sizable collection of high-quality mana crystals in Storage.
What I had noticed was that, each day, up to two events would occur with regards to the world outside the Sanctuary―by that, I mean something like a group of people claiming to be survivors such as those men from the first day, or an alien attack.
In the case of the former, they could be either real survivors who were just trying to get by, in which case the Protagonist would accept them into the Sanctuary and have them work in one way or another, like cooking, helping to produce any items the survivors might need, helping to educate the younger ones, et cetera.
And, when it came to those who were only pretending to be struggling, well...
Let's just say they were swiftly dealt with.
But hostiles from the outside weren't the only things I was tasked with the disposal of.