Born during a heavy snowfall, Yuki joined the Lonely Mountain Pack alongside other pups looking to train as hunters. Her boundless energy and fierce curiosity proved quite a challenge - and quite annoying - to her mentor, Kiba, but her keen interest and dedication helped her grow into a fine hunter. She was a little nervous about being the first replacement in the North Star party, taking the place of her mentor, but she quickly became a staple of the team, the older wolves seeing her almost like a little sister.