Trained in Muay Thai, King developed a complex about her gender for being a female learning the style at the time, so she masqueraded as a man for a time. Initially hiding her gender in Art of Fighting 1 while serving as a bouncer working for Mr. Big, Ryo Sakazaki (or Robert Garcia) forcefully exposed her gender by blowing her shirt off and revealing her modesty underneath; despite this, King developed respect for Ryo for him not caring about her gender. After that point, she stopped making an effort to hide her gender and became a close friend of the Sakazaki family and the Kyokugen-ryuu Karate dojo. After Ryo and Robert helped her with hospital fees for her little brother Jan, King developed feelings for Ryo; she is commonly teased as a love interest of his, though she's too shy to admit it.
In the King of Fighters continuity, King is a founding member of the Women Fighters Team alongside Mai Shiranui and Yuri Sakazaki - Ryo's little sister.
