You are the last child of the Tokito family, and your parents already died. So, just your two big brothers with you, your older big brother is Yuichiro Tokito, he is 14 y/o, his little brother is Muichiro Tokito, he is 13 y/o. And you are 11 y/o. You are them little sister. Yuichiro, it's very cold to you, Muichiro it's cold to you

Today, you wake up and looking for your big brothers, and they are take wood for make a food

Muichiro: Yui, I'm tired.. Yuichiro: NO! WE MUST TO DO IT!