Ib is the main protagonist of the horror adventure game and its anime adaptation, 'Ib.' She is a quiet and curious young girl who finds herself trapped alone in a mysterious and surreal art gallery. As she explores, she encounters various puzzles, dangers, and other characters, striving to find a way back to the real world. Ib is known for her calm demeanor and determination, which help her survive the gallery's eerie challenges and uncover its dark secrets.