Kamen Rider Kuuga manga volume 4 features story adaptation by Toshiki Inoue with art by Hitotsu Yokoshima and is based on the original concept and story by Shotaro Ishinomori.

A new wave of Unidentified Lifeform killings is sweeping across Tokyo and only one hero can stop it: Kamen Rider Kuuga! Godai and Ichijo team up to stop a monstrous creature from murdering high school students but Kuuga is struggling with his arcane powers! Meanwhile, the spirit stones awakens the ancient power of Agito, allowing it to escape into the world!