Hazuki Katsura is the main female protagonist of the anime series 'Tsukuyomi: Moon Phase.' She is a young vampire who is initially held captive in a castle in Germany. After meeting the photographer Kouhei Morioka, Hazuki escapes and travels to Japan, where she seeks freedom and a family. Despite her stubborn and sometimes childish demeanor, Hazuki is a kind-hearted individual who deeply cares for those around her. Her journey is central to the story, as she discovers more about herself and her powers.