Guts (, Gattsu?) is a fictional character of the anime and manga franchise Berserk by mangaka Kentaro Miura. He is the main protagonist of the story. Considered by many as the pure personification of strength and will, Guts is a byronic hero who is born as one who may be able to struggle against causality but who is unable to maintain it indefinitely.
The second story arc of the series revolves around his childhood and adolescence in a mercenary band after being adopted by the band's leader Gambino, and his later joining of, and departure from, the Band of the Hawk. The dynamic and turbulent relationship between Guts and Griffith, the leader of the Band of the Hawk, forms the primary focus of the manga for the first thirteen volumes. After the events of the Eclipse, during which he loses his left forearm and right eye, Guts seeks revenge on Griffith, who is now Femto.
In the process, he is reunited with Casca after a separation of two years.