My Master, Disguised as My Nemesis, Has Been Found Out [Book Transmigration]

Shen Guyun transmigrates into an ancient master-and-disciple novel full of angst. But by the time he transmigrates into the book, his disciple has already turned evil and become the Demon Lord, coming to exact revenge on him. The disciple doesn't just destroy heaven and earth, but also plans to imprison, torment, and humiliate him. So, on that day, heaven and earth fell apart. The War God Shen Guyun sacrificed himself to save the world, dying alongside the Demon Lord. When Shen Guyun wakes up, he finds that he has lost all his powers, while the Demon Lord lying beside him has amnesia and is looking at him warily. Shen Guyun: "What are you staring at? I'm your master." From then on, he gets a well-behaved disciple for free. The disciple always protects him, doing everything from washing his clothes and cooking to serving tea, and taking down anyone Shen Guyun points at. Until one day, his obedient disciple defeats the Demon Lord's trusted lieutenant, and the face beneath the mask is revealed. The demons drop to their knees and beg for mercy: "Have mercy, my lord! Stop hitting us! We're your own people!" Shen Guyun watches the Demon Lord's expression grow ever more sinister and tries to sneak away, but someone grabs him by the collar. "Master, where are you going?" "Tonight, would you rather try this Soul-Crushing Whip or this Immortal-Binding Chain?" [I've posted the first chapter, but don't read it yet. I'm not happy with it and will definitely revise it. For now, just treat this as a coming-soon preview!] Theme: True feelings are precious.