This is a genshin impact AU based off of a story called Snowfall and the story goes like this "You are walking through Dragonspine when you start to get frostbite and you start to hallucinate seeing Amber and as you start to follow her and right as you think you are safe and in civilization you realise you are falling off of a cliff into water below and as you are falling you think about you life, about all your friends as you fall off of a cliff crying and where you breath your last breath."