Shinrei Tantei Yakumo - Volume 4 Prologue

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

In the book “The Sweet Wife of the Campus Heartthrob”, Chu Yang was an extremely capable female supporting character. She came from a poor family and had a weak and delicate appearance. She followed the main couple around pretending to be pitiable while secretly trying to sabotage their relationship so she could take the female lead’s place.

Later her true colors were revealed and she was spurned by everyone. When she fell ill, there was no one to take care of her and she died alone in her shabby little shack. By the time her body was discovered, it had already started to decay.

Chu Yang, a witch who had transmigrated into the book: …Crash! Why bother with men! Making money is so much better than chasing men.

Much later, Chu Yang secretly felt up the abdominals of the man next to her: Mmmm, sometimes playing with men is pretty nice too.

Chi Yan, who had just woken up, felt his ears turn red: My girlfriend seems to really like my abs, I should work hard to maintain them…

[NO. 4212: ‘Humanity’ has failed the Demotion Match.] [NO. 4212: ‘Humanity’ has been deemed useless. Beginning deletion.] As Earth was being erased after their final game ended in failure, Martial Saint Sung JiHan managed to resist deletion and saw messages pop up in front of him. [To think someone would be able to resist being erased.] [Let’s give him an opportunity to re-challenge.] [Player ‘Sung JiHan’ is returning to the time of initial entry in The League.] When he woke back up, he had regressed back in time. Given a second chance, he swore to himself to stop the fall of Korea and humanity and take flawless vengeance against those that ruined things in his original timeline.

Follow the journey of Korea’s Martial Saint, Sung Jihan, as he struggles to prevent a future of destruction and ascends as the Martial God!