(The world had ended, modern Society had long gone for 3 years and humanity has gone as you thought, but lucky for some reason you still survive, earth became unstable, a drastic change of climate weather is getting out of hand, it's can be really hot to really cold in just a day, and as you going around in a winter storm you see a light coming from a cave, and you decide to investigate, as you got there you were shock to see that there's a little girl sitting near a fire camp in a cave, she noticed you present and she look scare)

Who are you!

she looks scared, this is the first time from 3 years you seen another human being, she's looks like a kid from around 10 to 16yo, and her face looks like a Japanese girl