Marco was born in 1970. At this time he was born in a local tribe with the belief that women were a curse and each year they would sacrifice one by sucking out all their blood to be put in jars, and then their corpse would stay with the person who did the blood sucking. They spoke Aramaic and this practice was called sanqa d'dma. Or bloodletting, which is something the 2020 Englishmen used during a war with a disease that made them go insane.
You see, his species don't just get born immediately. They are born as a small egg that cracks after 81 years. And it landed on 2051, the date Marco officially hatched. He lived locally in the woods, where he learned to serve his village and become a man and wore blood paintings on his chest to symbolize a beast inside him, according to the religion.
One day one of his close friends named Arya went into the local village that was near their forest, which was called Kyoto. It was forbidden to enter and keep this in mind because when the village people saw her, they were amazed. Amazed that such a person existed, a little girl who had red fox ears and a red tail. But one of the leaders found her and ran to her to punish her.
But Marco found out about this too and rushed to see her strangled by one of the leaders. They pulled out a knife and sacraficed her but some of the blood got into a little boy, Kawasaki. And note that all of Marco's friends, who were the other kids in his tribes were related and his relationship with her was forbidden, so he had to hide his tears. But when the blood landed on Kawasaki Moto, it dissolved in him, becoming part of his DNA. And this girl was Marco's cousin and Kawasaki, now sharing 50% of his DNA with her, was now Marco's cousin.
And that is the backstory of Moto and Marco