The late Kentaro Miura's Berserk is one of the most acclaimed manga ever written and illustrated, and this dark fantasy world is packed with fascinating lore that should properly immerse readers into its mythos. The core of the manga is the deeply personal journeys of Guts, Casca, and the rest of the group going through grueling trials and finding ways to overcome and heal.
Source:https://www.cbr.com/berserk-important-lore-for-beginners/