I Failed to Ascend: It's the End of the World When I Return

Five years ago, 18-year-old Zhang Fan went to climb Mount Huashan after graduating from high school. He fell accidentally but luckily traveled to the Xuanming Starfield in the world of cultivation. Where it took 500 years to defeat countless geniuses and break through to become a tribulation monster. A few years later, during the Ascension Thunder Tribulation where he transcended the tribulation and ascended to immortality, he was exploited by the inner demon tribulation because of the debt and longing he felt for Blue Star's parents and little sister. In the end, he failed to transcend the tribulation and was wiped out. But when he woke up again, he actually traveled back to Blue Star. And Blue Star has only passed in 5 years. Just after he left, the apocalypse broke out, the zombie virus attacked, and countless powerful monsters attacked, causing the world to fall into pieces. But at the same time, the human camp also awakened many supernatural beings to fight against them. Is this an S-level lightning power? Isn't this just a low-level lightning technique? This S-level fire control technique? Isn't this just a low-level fireball technique? Are your abilities too weak? I am a fairy, how do you play? Monsters, beasts and zombies are all dead, and I will kill them all with one strike of my sword. My sister must be pampered and my parents must be filial. See how Zhang Fan, the invincible Master Xuantian in the world of cultivation, defeats everything and protects the existence he cherishes on the doomsday Blue Star.