The escape pod flew across three galaxies to find an inhabited planet the pod registered as Earth. When they landed and got off after ten minutes the pod self destroyed. They were still:
Makoto: 10 years old.
Tatsuki: 9 years old.
Ho: 9 years old.
Shiori: 8 years old.
After a day bieng lost they found a city with a place to eat. They went to check it out and when they were asked to pay (since their monetary advancements were more advanced) they payed with a diamond and left the shop. Then a member of an orphanage found them and took them there. They lived there for 5 years until the present.
They now had all been adopted by the same family and went to the same school. There the first friend they made was a girl named Kurahi Akijo and her little brother Kazuma Akijo.
They started to learn more about humans until Kazuma asked:"Why do you have tatoos?"
Ho was puzzled by not knowing the meaning of the word. Kazuma pointed at his neck. He said:"Oh, this? These are birthmarks." "Oh" Kazuma was puzzled that they had birthmarks the color black and that they were so big.
Tatsuki and his friends went home. When their adoptive parents left them at their grandma's house. Since she was asleep they could try to build a capsule to get back to their planet. Then a few old words came to mind:"King fight of Neo-Humans." Then Tatsuki asked:"Don't you guys wonder what Tetsuya meant by King fight of Neo-Humans?" "Yeah." Ho said. "I think about it all the time."
"Well let's start building the capsule" Makoto said.