"Kabaneri of the Iron Fortress" is an anime series set in a steampunk world during a zombie apocalypse. The story follows a group of survivors who live in fortified stations to protect themselves from the Kabane, zombie-like creatures that are nearly invulnerable. The main character, Ikoma, is a young man determined to fight back against the Kabane and seeks to find a way to defeat them. The series features a unique blend of action, horror, and adventure, showcasing the struggle for survival in a world overrun by the Kabane. The survivors travel on a train called the Hayajiro, which serves as their primary means of transportation and defense against the relentless attacks. The show explores themes of humanity, fear, and resilience in the face of overwhelming odds.