Long before the peace we are accustomed to reigned on our land, chaos and destruction swept through the realms of the universe, such occurrences was caused by Cassiopeia, the strongest constellation of the heavenly bodies who declared war among the twelve ruling zodiac signs. After decades of bloodshed, Cassiopeia was finally sealed in the heavens but the war's aftermath threw off the balance between the celestial realm and the earthly realm, which, in the end, had a rippling effect on the cosmos awakening numerous of negative entities

In order to avoid discord on the earth and retain the law of harmony between the two realms, the twelve ruling zodiac signs appointed twelve human beings to become their earthly beacon and uphold peace on the land, they are called; the earthly twelve, each of them has a unique set abilities that are almost equal with that of the ruling twelve.

And every 150 years the zodiac signs appoint new heirs to bestow their powers upon. Now, that a new era has begun, Gianna Elouise Smith, a 25-year-old woman who suffered from a drastic memory loss was chosen to become a beacon of power of the ruling zodiac sign; Gemini. As she joins the twelve, she learnt that her sign is the most despised one among all