Betrayed and slain by those he once called allies, the legendary Martial God Seon Hwayoon is reincarnated as a prince of the Solar Palace. In his past life, he built an empire of justice, only to be murdered by his sworn brother and trusted comrades. Now reborn, he sharpens the blade of vengeance to reclaim his honor and exact revenge on those who betrayed him.. The age of reckoning begins.