"If the apartment dies, outsiders will enter. Whatever horrors there are in the outside, they'll all come in and fill the apartment."
"If that happens..."
"We're pretty much doomed if that happens," Aston finished Song Lei's sentence for him.
"What should we do then? You said that the apartment was recovering well, right?" Song Lei asked as he folded his arms in front of his chest.
"Mm. That's the case. Although this apartment is a living being, it shows some awkward features. For example, its recovery speed isn't related to its internal state at all. Instead, there is a fixed rate of recovery that doesn't change according to the amount of damage unless the damage goes above a certain threshold."
"Then as long as we keep the apartment safe, it will heal with time..."
"Yeah. That's pretty much it. Fortunately, the apartment seems to be pretty much invulnerable on the outside. It seems to get harmed only from the inside."