For some reason many Caucasians somehow end up residing with an elderly Asian martial arts master either in a village in a remote part of Asia or in the depths of an American city's China/Korea/Japan-town.
This elderly master always has a hot Asian daughter/granddaughter/niece who is scornful, yet secretly stimulated by her new honky housemate.
Said Caucasian always discovers a hidden martial talent through everday tasks like sweeping floors or painting fences. This talent, and the longing glances given by the hot daughter/granddaughter/niece, of course infuriate the top Asian student of the above-mentioned elderly master.
Luckily though the skills picked up by the Caucasian from a few months of floor sweeping are enough to defeat the top student, who has trained all his life and is a champion in underground death matches. The hot Asian daughter/granddaughter/niece realizes through this victory that Caucasians are far superior, have quicker martial arts learning curves, and extremely large genetalia and, of course, gives up her body to this white boy with the blessing of her elderly father/grandfather/uncle.