My Back Door Leads Straight to the Cultivation World

Yu Tang accidentally opened the back door of his apartment building and was forced to take masters, learn their arts, and dominate the immortal realm. All sorts of big shots are competing to teach him. By day, he's a student, intern, and wage slave. By night, he cultivates immortality, fights monsters, and takes care of his master. The short version: Making money is hard. One day, overworked employee Yu Tang finally messed up and was forced to run a business trading between the immortal and mortal realms. He installed Wi-Fi, computers, and game consoles in the cultivation world. In the modern world... he was busy saving the world. Yu Tang: I'm done being the protagonist of a wish-fulfillment novel! Master: Then how about being the protagonist of a Jinjiang novel? Yu Tang: ? Master, you should read fewer novels. Master: Don't you modern people always write stories about disciples betraying their masters? I want to see if a wicked disciple like you can get my attention. Yu Tang: ...Stay away from romance novels! Blurb screenshot from December 21, 2020. Any similarities are because you copied me. Theme: Respect teachers, study hard, work hard, and make money.