I Have Become an Immortal Emperor, and You Let Me Go Back to the City to Torture Ants

[Invincible cultivation + brainless cool writing + decisive killing + horizontal push + daily + no hiding of strength] After graduating from high school, Mu Xuan accidentally fell off a cliff while traveling alone during the summer vacation and traveled to the immortal world to become an unknown cultivator. Then he finally became the Immortal Emperor through 720,000 years of unscrupulous means. When Shen Qin opened his eyes in joy, he found that he had returned to modern times. Moreover, only one month of summer vacation had passed in the 720,000 years of cultivation in the immortal world! After returning, Mu Xuan discovered that his Immortal Emperor cultivation when he was in the Immortal World had also returned to the city! In this missing month, the city has also ushered in the heyday of cultivation era with the revival of spiritual energy! Mu Xuan: "Are you asking me, a big shot in the fairy world, to travel back in time and play house with a group of ants?" Mu Xuan: "You are the only one who is strong in Qi refining and foundation building, right?" All of them disappeared into ashes with a flick of the finger, and were buried in the blood mist on the other side. I am the Immortal Emperor, and you are all ants! "You know nothing about the power of the Emperor of Heaven!" [The protagonist is super invincible in the universe at the beginning, no nonsense, no ink, no Holy Mother, emphasis on love and justice, clear grudges, no procrastination] PS: The world view of the parallel universe is a system of its own.