The Villain’s Disciplinary Manual: How to Avoid the Male Lead’s Wrath

It's a Chinese Historical, Transmigration BL novel. Where a depressed college student (Xu Zihan) finds a cringe harem novel; "The Chosen Devil vs Humanity". The cringe novel tells a story where; Wei Junyu (A boy who has been accused of demonic sins) has been sent to a Master (The villain; Liu Fenghua) to be disciplined. But Liu Fenghua had an unforgettable history with demons, leading to burning hatred towards his own student, giving him endless torture, physically and mentally. With such hatred, on March the First, he drowned Wei Junyu into the Fire Lake (The cursed Waters from the Demons). Wei Junyu was betrayed by his own master, the Demon God, who saw undying potential in the student's eyes, gave him second chance in living, and to fulfilling his unsatisfied desire of Revenge. To prove that people must kneel before him, even as a devil. He travelled in all of China, defeating devils, angels, and of course, HUMANS, then he built his harem. In the end, he kills everyone who has defied him in the past, giving his master the most brutal death. But here's where the actual fun starts, Xu Zihan transmigrates into the Master Villain; Liu Fenghua. In order to keep the balance, to avoid corruption and fate at the same time, he must change the storyline, but at least keep his persona. Which Liu Fenghua ends up having a terminal curse from an enemy (because the storyline has been changed from Xu Zihan's carelessness), but instead of Wei Junyu plotting revenge on his master, he sought to kill the one who cursed his master, after being pushed into the Fire Lake. Liu Fenghua (Xu Zihan) is unaware of Wei Junyu's growing love towards his master, he changed the ending, but this is not what he expected, making it the perfect, angsty and comedic BL.