A Japanese teenager is killed by a thug and reincarnates in an alternate, fantasy-like world as Cain Von Silford, the third son of the noble Von Silford family thanks to the intervention of the seven gods residing there. Accepting the task from the gods of helping improve their world with the knowledge from his past life, Cain is appointed as their Apostle and receives powerful blessings from them, unaware that his true mission is to protect the world from a forgotten, evil deity who is about to awake.