Fighting fire with fire...or so they say fight darkness with darkness. Grim Dark Online was a trending online game that was MMORPG. They were stuck in the game after the abrupt shutting down of the System. Logging out was removed after hackers breached the firewall.  Xian transmigrated in to the game Grim Dark Online. And he was transferred in the eve of the World Soul Barrier's destruction. Making the Demon Gods to assault the world with their minions.  The Cult of Black Snake, the slaughter of the Immortals, the Silent Hunter assassins killing the Holy Emperor. The corruption of the World Soul and World Tree....... and so much more! Xian, on the contrary was panicking as he was not prepared. With his last playthrough as a Warrior, he would have knowledge with the game. He was the god of Slaughter in the last playthrough and he fought the Necromancer Villain called the god of Death and won a desperate victory. But then he was sent in the past when all has just started. He wanted to be a warrior again but fate has other options for him. Until he found a class more suitable for the all out warfare. And that was the Necromancer class from the Villain of his past life! He has a chance to stand toe to toe with demon lords and demon gods . With the summons copying the battle instincts of the summoner, he would have greater firepower and better play style than before! A warrior trapped in the body of a Necromancer! His play style would be a tier higher than before!