When other people transmigrate into a book as villains, they either have the heroine overhear their inner thoughts, kill the male lead and take his place as the protagonist, or awaken a Life Editor and turn the heroine against him...
Ning Fan, on the other hand, got nothing but a fishing rod.
But what made his fishing rod incredible was... it could fish up the male lead's opportunities!
Fishing successful. Congratulations, Host, you caught the Imperial Artifact, "True Bone of Ten Thousand Ages."
Fishing successful. Congratulations, Host, you caught the cultivation technique, "His Transformation and Freedom."
Fishing successful. Congratulations, Host, you caught the male lead's backer...
Yue Chan, Queen of the Ancient Demon Court: "Ye Yan, Venerable Ning is my little brother. You dare lay a finger on him and see what happens!"
Gu Xian'er, Human Empress: "Brother Fan, I'm done being the heroine. I'll be your little sister instead!"
Ji Qingling, Ancestress of the Mortal World's Sword: "You want to kidnap me? All right, but you'd better keep me captive for the rest of your life!"
Chan Hongyi, the lovesick Demon Venerable: "Master, am I your strongest and cutest disciple?"
Villain Ning Fan: "I just want to fish in peace, but the heroines won't let me!"
Male Lead Ye Yan: "I was quietly building up my strength out there, so how did the villain sneak into my home?"
Seriously, that's a very high level of skill.