Inuki is a goddog given to Yuzuriha Nekoi when she was a kid. He is her best friend and companion. Inuki can transform himself into several thing including the shape of a sword where he helps Yuzuriha fighting. He cant be seen by ordinary people and this made Yuzuriha really sad when she was young people used to call her a lier for her telling that he was at her side and nobody saw him.