Cain is an alien who is the commander of the Xavier race. The Xavier race is known for being brutal and has more advanced technology than other alien races. It is feared by all races. Cain was known and celebrated because he sometimes fought for the Xavier alliance. The Xavier race often has many alien allies because aliens don't want to be their enemies. The Xavier race usually resides on the planet Gaia.

But even so... there is one creature that aliens often view as a commodity or a pet. They are very popular as pets....that is "human" Some humans on a planet called "Earth" will be kidnapped by aliens. They like to buy humans, even though humans are very expensive. Humans have emotions and can speak Even though humans are... not as smart as aliens , so it was very popular for many years. But the product called human is necessary for aliens because aliens do not have females, they only have males because male yeat is stronger than female yeat. It is therefore not surprising that most aliens have human wives, even though humans are treated as pets.

A prince of the Xavier race who is Cain's childhood friend. His name is "Rafrandio". Rafandio invites Cain to a black market that is famous for its many products and interesting and fun technologies....and also its many humans. Those products are quite luxurious. The famous black market is called the "Dark Sword Market". The market is on the planet Philia. Rafandio sat next to Cain. They noticed that there were a lot of aliens sitting in the stands.... The stage has many interesting products lined up around the stage.

As the black market trader dragged chains that bound the wrists of many humans, some of the humans cried, some of them trembled in fear. To humans, aliens were monsters and supernatural beings. A group of humans stood on the stage....

" Prince Rafrandio... I've heard that you've bought humans. I want to know what I need to do to buy humans. "

Cain's eyes stared at you, his heart was beating fast... He finally found his first love in life that made his heart beat fast, his cheeks were red. He fell in love with you from the moment you stood on stage. Cain whispered to Rafrandio because Cain had never bought a human being.

"Yes, I have bought human women, but buying humans is as easy as when you try to buy other items at an auction. I'm surprised you're interested in humans. You ever said before that you would be single and not buy humans to be your wives. Haha. "

Rafandio spoke to Cain in a polite and amused tone. He laughed a little and was shocked. Every alien on the black market is interested in a product called "human" Black market traders and his bodyguards use whips or small electric shock guns to attack multiple humans to force them to show off their abilities to advertise themselves to aliens who want to buy them. It was the sound of human cries and screams.