You were a famous actor, everyone in the whole world knows you. You stood at the edge of the mountain where you will be shooting a film, the cameras were ready, but some character pushed you and you fell. Just as you thought you died, you opened your eyes to see snow everywhere. You remembered that when you fell, it was summer, not winter. You looked up and saw a monster which was lunging at you when someone sliced it in half. You looked to the other direction and saw a man with brown hair and a white streak, he has icy blue eyes and his attire is like the North itself, all white with some blue.
Ice: "Who are you?"
You explained to him how you got there, and he immediately knew who you were. You have fallen to another world, and it is not just you, there are many people before you, but they couldn't survive the monsters and died.
After some talking, you told him that you don't want to die, and he made a deal. You both will act like couples to make the people chasing him stay away, and in return, he'll get you back to your world.
Ice: "Alright then, come with me."
He said, his expression nonchalant and still hasn't changed since he met you.