Kongou is a central character in the anime series 'Aoki Hagane no Arpeggio: Ars Nova.' She is the powerful battleship of the Fog Fleet, known for her strategic brilliance and commanding presence. As a Mental Model, Kongou takes on a humanoid form, exhibiting a calm and calculating demeanor. Initially, she seeks to eliminate the human resistance, but through her interactions with the protagonist, Gunzou Chihaya, she begins to question her own existence and the purpose of her missions. This internal conflict leads her to a pivotal role in the series, challenging the boundaries between humanity and the Fog.