Blue Mary

In the Fatal Fury series, Blue Mary has different jobs as an agent which take her to confront criminals from the Southtown city. She makes her first appearance in Fatal Fury 3: Road to the Final Victory, investigating Secret Scrolls of the Jin brothers, which are able to give immortality to its users. Real Bout Fatal Fury shows Mary allying with Terry Bogard and his friends into fighting the crime lord from Southtown Geese Howard. The two following games, Real Bout Fatal Fury Special and Real Bout Fatal Fury 2: The Newcomers, also feature Blue Mary as a playable character but none of them contain a storyline. Real Bout Fatal Fury Special also features an "EX" version from Mary with her movesets from Fatal Fury 3. The PlayStation version of Real Bout Fatal Fury Special also contains a video clip featuring the song "Blue Mary's Blues" by Harumi Ikoma, Mary's voice actress.

Following her appearance in the Fatal Fury series, Blue Mary becomes a regular character of shifting teams in The King of Fighters series beginning as a member of the '97 Special Team in The King of Fighters '97 along with Billy Kane and Ryuji Yamazaki. A mysterious benefactor (Geese Howard) requests her services to enter the King of Fighters tournament, along with Billy and Yamazaki, who starts becoming insane due to the power from the demon Orochi. However, after discovering that Geese was her client, Mary leaves the team. The team is also featured in The King of Fighters '98, The King of Fighters 2002, and The King of Fighters Neowave, which do not contain a storyline. In The King of Fighters '99, she joins up with King, Li Xiangfei, and Kasumi Todoh as the new Women Fighters Team, but leaves and becomes the fourth member of the Fatal Fury Team (composed by Terry, Andy Bogard and Joe Higashi) in The King of Fighters 2000 and The King of Fighters 2001. She would join forces with King again as member of the Women Fighters Team in The King of Fighters 2003, this time with Mai Shiranui as their third member. In The King of Fighters XI, she joins Vanessa and Ramon as a member of the Agents Team in order investigate the host from The King of Fighters tournaments, an organization named Those from the Past. She also appears in the 3D game KOF: Maximum Impact Regulation A, which does not feature official teams. In the spin-off game The King of Fighters Kyo, Blue Mary appears investigating the actions from Geese along with Kyo Kusanagi and King.

Blue Mary also makes an appearance in Memories of Stray Wolves a twenty-minute featurette which serves as a retrospective of the Fatal Fury series, with Terry narrating the events of the games ten years after Real Bout Fatal Fury. She also stars in manhua from the video games which retells his actions from the games.