Guts is the central character of Berserk, the dark fantasy manga created by Kentaro Miura and first published in 1989, later adapted into several anime series and films. His theme has become shorthand online for lone-wolf determination, grief, and relentless fighting against impossible odds. Clips of the music spread through anime edits, AMVs, and gaming montages on YouTube and TikTok, where creators use it to signal a serious, heroic turn. Its lasting appeal comes from that direct link to Guts himself, a character fans associate with endurance and defiance.