Title-wise it is more correctly the seven step style of kung fu.
Master summons the gang. Another guy goes to see the silk factory. Ricky Chen enters as an acrobatic doofus. As Little Tiger, he defends a girl from a drunk. Two sinister looking guys discuss that white eyebrows has summoned the gang. Cut to our guy practicing. He gets into a dispute with another man over an apple and each end up with a large medallion. His master, Ga Hoi, knows the owner. They watch for strangers in town. One is a girl, Lam Yi-Wa. That's the bad guys for some reason. The girl ends up changing sides.
The last half hour of this movie is almost 100% fights. That can actually be a problem if all the fights look alike. It is not a problem here. The choreography is excellent and never becomes redundant.
Ricky Cheng has a Chinese opera background and uses acrobatics in his fights. After making a few movies at Shaw Brothers he took his skills to Taiwan. This movie is one of his very few lead roles. I rate this one above average for the year and genre and certainly recommend it for fans of the golden age of martial arts movies from 1967-1984.