Kain R. Heinlein/Story

=Fatal Fury series=

Past
Kain is the brother of Marie Heinlein, Geese Howard's late wife and Rock Howard's late mother. Unlike his sister, he faced a childhood of poverty whilst in the slums. Grant, known then as Abel Cameron, watched over him as his fatherly figure. Nineteen years before the game, Kain, after witnessing the violent death of a child in the streets, had enough of the slums and declared his ambitions for power. When he was eight years old, he entered a street fight and his strength was recognized by a wealthy kingpin named Don Papas. Adopted into the family thereafter, Kain eventually overthrew his benefactor and became the head honcho of the gang. Unfortunately for Kain, this would not be enough to protect Marie, as sometime later, he heard the news that his sister, Marie, died from her sadness of not being loved by her husband.

Real Bout Fatal Fury
Sometime after the events of the third King of Fighters tournament, he heard that Geese was killed by Terry Bogard. He deemed the general populace jaded by mediocrity and peace. Thinking that a person truly experiences life when they're oppressed, Kain decided to take Geese's legacy and rule Second Southtown. He wanted to declare the city's independence from the US, make it a city-state, and then model the town into one that would constantly be exposed to violence which would make the inhabitants value their lives, with the strongest ruling over the weak.

Garou: Mark of the Wolves


At some point, Kain learned about Rock's existance. He wanted Rock to join them, so he created the "King of Fighters: Maximum Mayhem" tournament and invited several fighters, including Rock and Terry. His exact fate after the tournament remains unclear as several endings paint different results. In his own ending in the game, he tracks down the remaining crime bosses of Second Southtown and confronts them with Grant finally seizing control.