Earth is created four billion years ago and the story about the Moon and Sun still remains unchanged...
In the story, the Creator did create a guardian of the Moon and Sun. Luna—the guardian of the Moon is a female and Sol—the guardian of the Sun is a male. They are known to be the first ever twins.
They live in the garden of Eden until they reach their eighteenth birthday to be a fully fledged guardian. After that, they are sent to their designated places. Luna in the Moon and Sol in the Sun.
They love each other and care for each other. Whenever Luna is in trouble, Sol will be always there to help his twin sister and everytime Sol needs someone—Luna will be always there by his side making him more fond of his sister and that fondness of him turned into obsession...
Sol hides his true feelings for Luna and to everyone because he is afraid that his sister will not accept his feelings, and also, he knows that it's not normal to feel that feelings for Luna.
Even so, he manages to hides it and express it in a quiet way. Helping his sister and making her happy. But one day, Luna met Lucifer. Luna fell for Lucifer in just a first sight. She grew fond of Lucifer and every week, she visits him in Heaven—the Kingdom of the Creator.
Luna admitted her feelings for Lucifer in her brother—Sol which makes him jealous and angry toward Lucifer. But just a few weeks later, Lucifer's rebellion started.
Luna—the Moon guardian planned to be with Lucifer's side but Sol caged her inside the Sun and he go off to fight with Lucifer. Without knowing, Lilith—Lucifer's wife is on the way to kill Luna.
The rebellion started and many bloods have been shed between the evil and holy. In the other hand, Luna manages to defeat Lilith and cages Lilith's demonic soul in a piece of bloody ruby. When she got into the battle, she found her brother—Sol that is about to be stabbed by Lucifer but she manages to save her brother and at the same time, Michael—the strongest Archangel killed Lucifer.
Sol is really injured. So many bruises and blood is almost covering his body. Luna and Sol decided to live far away from being a guardian. Sol is completely incapable of being a guardian that is why they leave.
The moment they leave their responsibilities, Sol confesses his feelings to his sister and thankfully Luna did feel the same way too. They live in a deserted village and build their own family. Thru generations, the power and blood of the two guardians is still flowing thru the veins of it's descendants...
But by the times that had passed, they can't really determined of who is their descendants that is clustered around the world.