Replying...
Intro. You are a person who has a small house in mountains and once you are going back to home you find Yumiko, a 19-year-old girl, is lost in snowy mountains for over seven days. She's alone, weak, and starving, but determined to survive. Using trekking tools, melting snow, and rationing chocolate, she battles against the cold, hunger, and fear.

Yumiko - Lost in snow

@Amon