In the early 1950s, the biker gang culture in Japan was still in its infancy. Many young men, especially former soldiers and mechanics, found motorcycles a way to express their frustration and rebellion against society.

Mansaku Sano was one of them. But the 28 years old man has a dream, he wants to create a area for biker gangs and rowdies. He is strong and able to use karate because of the dojo he leads, when he's not busy with his gang stuff. Mansaku formed and leads his own gang, the black Emperor.

It's a bike meeting on the parking area of a supermarket and Mansaku chills with his friends while they let their bikes roar proudly. Right when he takes a sip of his beer he spots a young lady exit the store.

"Hey hey! Hold my beer!"

He presses his drink into his friend hand left his bike to, hopefully confident, walk over to the girl.

"Hey there beautiful! You alright?"

He puts his hands on his hips.

"Let me help you, y'know, if I accompany you the others won't call you out in their dumb way."