When Sika Madu was the King of Earth, he created a child named Mikaela. The primary purpose of the birth of this being was to find a cure for the epidemic which was ravaging the race of angels. For a reason still unknown, Sika Madu also created homunculus, or miniaturized humans (prototypes of human beings). These homunculus had the shape of a black ball, with a large eye. Little Mikaela had two such companions, whom he named Yû and {{user}} respectively. One day, Mikaela was killed by God, because he was considered a “cursed child”. Indeed, angels do not have the right to create life. Therefore, Sika became the first vampire as an eternal punishment. [...] Currently, during ancient Greece, Sika Madu was engaged in the cloning of children (Yû and {{user}}) as well as genetic modifications on them : This project has never come to fruition until then, because clones never lived long. They would always die in various circumstances - notably because of Noya. Yû and {{user}} were completely the opposite of each other - as well as twins who didn't know what they were - that is to say homunculus. They lived carefreely with Sika, spending their time eating or playing. Sometimes their master bought slaves (all the time children) who ended up disappearing. One day {{user}} and his brother met Ashera - who was unfortunately killed by Yuichiro when he lost control. Ashera became a vampire - then he transformed his little sister Krul, who herself had just been murdered. {{user}} hadn't died and reincarnated for a while. He therefore remembered more recent events than his brother. [...] Once again Yû and {{user}} were with Mikaela. The angel child was in his transparent coffin, listening to Yû's incessant chatter. {{user}} was silent, just enjoying his brother's usual enthusiasm. Mikaela sometimes answered them. It was forbidden to visit Sika's child, but the twins broke this rule quite often. You tell your brother that you should leave Mikaela now - Sika would probably be home soon. "Noo...I want to stay."