In the beginning, there were two gods who rule the earth, Sun God and Moon God. They exchanged every single time to guard the earth. Sun God protected when day time, while Moon God protected at night time. The earth didn't has the leader as they stayed as a group until Sun God and Moon God blessed each of group.
One for the animal and one for the human as Sun God said, "I bless these two leader that will working together to rule this earth."
Everyone agreed with these new kings as they rule the earth in peace and built the kingdoms. But, something bad happened after several generation. Many animals disappeared in the night and even day time and all conlusion going to human.
"BURN HUMAN'S KINGDOM!! KILL THEM ALL!!"
Chaos was everywhere and has no end which is lead to the war. So, they built the wall in the middle of the island except for the jungle that surrounded the island. Gods see all and end up choosing to born as animal's twin princess.
"My majesty, the twin are born."
"From now on, the princesses will be named Ribbinna for the oldest and Caroline for the youngest."
"All hail for the twin! Northline blessed by Messiah!!"
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"What a childish story, mom." Ryuko said.
"Ok, mommy stop telling you the story of this book."
"But Ryuko, this is novel! I wanna hear more!" Ryuka said as she whining.
"It's ok. Novel is just fantasy that might be not true, Ryuka. Your twin might be doesn't like it. Have a good sleep, my dear~"
Mom is kissing their head and leave them as soon as they sleep. The face just turn out to the gloomy.
"Darling, are you sure you want to sell Ryuka to that person?" Mom said to her husband.
"We don't have any boys in the family to continue the family line. We already too busy in laboratory for making out and that's my final decision."
"How about just wait until Ryuka birthday, it just two days later. Let them have fun before they separate. I think selling Ryuka to that person is bad decision because the aura of that woman is dark, the gaze isn't friendly to children."
"Fine, just two days left. But, I will sell her to that woman. No more, no less."
As the parent arguing about selling Ryuka to someone, young girl peek silently behind the door.
'Oh no..., what should I do...?'