Short answers, pulled from the story.
Fatal Fury was designed by Takashi Nishiyama, who had earlier created the original Street Fighter at Capcom. After leaving Capcom for SNK, he built Fatal Fury around a story and characters he found easier to empathize with.
Fatal Fury is a fighting game series developed by SNK that follows the sons of the late Jeff Bogard, Terry and Andy, in their conflict with South Town crime lord Geese Howard. Later entries shift focus to Geese's son, Rock Howard, as he uncovers his own legacy in Garou: Mark of the Wolves and Fatal Fury: City of the Wolves.
The first game, Fatal Fury: King of Fighters, was released on SNK's Neo Geo system in 1991. It became Japan's fourth highest-grossing arcade game of 1992, behind two versions of Street Fighter II and Captain Commando.
Fatal Fury is set primarily in the fictional city of South Town, loosely based on the real-life city of Miami. The Wolves sub-series takes place in the neighboring city of Second Southtown.
Geese Howard's popularity grew until it topped Terry Bogard's in fan surveys about which character players most wanted to play. SNK modeled him on the Italian mafia and gave him signature moves that let him interrupt an opponent's attack and counter with a grab.
Fatal Fury was on hiatus for twenty-six years after Garou: Mark of the Wolves (1999), following the failure of the Neo Geo's intended successor and SNK's bankruptcy. The series returned with Fatal Fury: City of the Wolves in 2025, released on most modern systems.