Others Struggle to Survive the Apocalypse, While You Fly on a Sword. Is That Fair?

In his previous life, Zhang Yuan was emotionally blackmailed by his holier-than-thou girlfriend. He died a gruesome death at a demon’s jaws while trying to save a cat! Reborn on the day of the apocalypse, Zhang Yuan sacrificed his girlfriend on the spot and activated the System! “【The Host’s strong will to survive has been detected. Binding conditions met. Apocalypse Survival System activated.】 【System mutation detected... System mutation successful... Cultivation Assistance System successfully bound to Host.】” A cultivation System in an apocalyptic world? How could that not be awesome? When a group of S-rank ability users surrounded Zhang Yuan, every survivor thought he was doomed. But then Zhang Yuan snapped his fingers. A great formation rose, flying swords hung in the air, and pill fire scorched the heavens… All the ability users went crazy. “Is this an ability? This is freaking immortality!”