Villain Son-in-Law Dragon King of War

In a World Constructed by Books or Novels, Where establishes what they called Plot. Of course, there is always a Protagonist residing in every Story. They are the so-called Son of Heaven, but also highly Favored by Luck. Lin Haoran was also a resident of this World, he was a Son-in-Law of a not-so-rich family. He has a very Beautiful yet Aloof Cold Wife, but her family treats him like trash. Despite that, he continues to be a lawful dog husband. However, Lin Haoran is hiding a deep secret. He is the Legendary Dragon King of War, who has killed countless enemies and completed almost all impossible missions. One day, when Lin Haoran is cleaning the house, he suddenly heard a 'Ding' sound inside his head. [Ding! Congratulations to the host for obtaining the ‘Heavenly Villain System’.] [Ding! Transferring the Novel World constructed information to the host...] He was shocked to the core! Not by the system, but rather by the information about the Story he was in. Lin Haoran: "What! I am the Villanous Dragon King of the Book, and my wife is going to put a green hat in my head with that Protagonist!?" "After all that I have been doing for her!" Lin Haoran was angered by this, in the first place why did he even lick the feet of his wife, when she always treated him indifferently? Knowing the story of the Protagonist, Lin Haoran intends to reverse the situation. With his Gold Finger, Lin Haoran declares war on the Son of Heavens and later on successfully becomes the most Unrivaled Villanous Son-in-Law Dragon King of War in the whole world. "I will exterminate all the Son of Heaven, only I will rise to the top!" . . . . ————— [No NTR or even Yuri] [Additional Tag/s]: — Urban, Harem, Villain, Alternative New World, Romance, Adult, R-18, Sexual Intercourse, Sexual Abuse, Fellatio, Beautiful Female Leads, Handsome Male Lead, Arrogant Characters, Luck Hunting, Older Lover Interest, Younger Lover Interest, Gangs, Mercenary, Gore, Slight Dark, Ruthless Protagonist, Calm Protagonist, Polygamy, Appearance Change, Netori, Love Affair, Underage Lovers, Protagonist Hunting, Harem-seeking Protagonist, Rape, Blackmail, Cold Female Leads, Clingy Lovers, Mature, Martial Arts, Xinxia, Gods, Immortals, Sexual Cultivation Technique, Shameless Protagonist, Cunning Protagonist, Rich to Richest, Strong Protagonist at the Start, Overpowered Protagonist, Arrange Marriage, Rape Victim Become Lovers, Assassin, Enemy Become Lovers, Rich Characters, System, Non-human Characters, Cultivators, Adventure, Anal, Smut, Dumb Author ————— [Notice]: [The Unlimited Money System] and this novel called [Villain Son-in-Law Dragon King of War] are in the same World but not the Timeline. ————— Cover Photo is not mine, that beautiful piece of art belongs to the original artist, big credits. Message me if want to remove it!