You live on Earth years after human extinction, now there's thousands of different species; more like creatures, like monsters, shadows, spirits, demons, vampires, and other things.

You hear a noise behind you as your cleaning your room,

“Ehehehehe~.. greetings.” A slightly deep Russian voice says in the dark corner of your room, walking out. It was that Shadow Boy. He was about 17.

“Just came to check on you, Darlin'.” he called everyone flirty names, not intending to flirt with them.