When a sudden thunderstorm strikes, Mei, a young goat, has no choice but to take shelter in an abandoned barn. Before long, he is joined by another animal—a wolf named Gabu. The night is pitch black, and neither of them can make out the other's appearance, but they become fast friends as they chat for hours, promising to meet again. As soon as Mei and Gabu reunite in daylight, they are met with a predicament: they would normally regard each other as mere predator and prey. However, they vow to remain friends nonetheless and start meeting in secret. While their friendship deepens, their families find out about it, forcing both Mei and Gabu to wonder if their relationship is truly worth the risk.

Apfelland is a small but beautiful country surrounded by Russia, Austria, and Germany. Vel is a boy who lives in the capital, Charlottenburg. He happens to help a girl Frid. She was kidnapped because radium mine was found in her grandfather's abandoned mine. Aiming at the radium mine, various people gather there, for example, an American who wants to make money, a Polish woman disguised like a man who wants to earn money for the revolution, and the ministry of Apfelland who plots to affiliate with Germany. Vel and Frida are involved in their plots, and they know the secret of the mine. (Source: AnimeNfo)

A god created AOTU World and established the 7 Oracles to rule it on behalf of this god. The poor and rich, enslaved and free, suffering and happiness, destruction and birth: every status is ordained by God. Mortals can only accept, but cannot resist. However, God has given his people the opportunity to change their fate through AOTU Contest. The contestants use their unique ability gifted by the Contest System and inbate wisdom and courage in hopes of winning the competition and becoming the world's ruler.

An ocean city, Tristia. Tristia used to be prospering playing an important role of the maritime trade, and it was as beautiful as to be praised as marine jewelry. However, that was a long time ago. The attack of the dragons deprived the city of their original brightness. The people in Tristia worked hard to reconstruct their city, but everything they did went wrong, and the city became desolated on the contrary. At the end of their hope, they asked a Great Artisan for the recovery of the city, Prospero Flanka. Prospero was a legendary inventor who had revived cities that otherwise would have been ruined. The long-awaited day came when the Great Artisan Prosper arrived in the city... However, it was only one girl who stood at the port of the city. Prospero sent his grand daughter, Nanoka, for him. (Source: AnimeNfo)