Tia Takao is a prominent character in the anime series Aoki Hagane no Arpeggio: Ars Nova. She is a 'Mental Model,' a humanoid avatar of the Fog Ship Takao. Known for her intelligence and tactical prowess, Tia initially opposes the protagonist, Chihaya Gunzou, but becomes intrigued by human emotions and eventually allies with him. Her character development explores themes of identity and emotion, as she learns to understand and embrace human experiences. Tia plays a crucial role in the battles against other Fog Ships, showcasing her growth and loyalty.