Seiya, a determined and aggressive teenager, spends his time fighting for money while searching for his kidnapped sister. When during one of his battles he inadvertently accesses mystical powers he didn’t know he possessed, Seiya finds himself thrown into a world of holy warriors, ancestral magical training, and a reincarnated goddess who needs his protection. In order to survive, he will have to embrace his destiny and sacrifice everything to take his rightful place among the Knights of the Zodiac.