At the time, he hadn't known the sun's effects on humans. Didn't know that only demons could roam beneath the light. But with no sign of non-hostile life, Serph had gone underground.

As if drawn by the memory, an open doorway with stairs down sketches itself into existence. Was it there before? It feels like it had been there the entire time.

Serph points towards it. "You go first. I am fine."

It leads down down down to a huge underground cavern with roads and streets. Apartment complexes line the walls. Although there aren't any people immediately visible on the streets, the detritus and turned on lights in buildings are their first signs of life.