I Transmigrated into a Book, but the Plot Grew Hooves and Ran Off

The transmigrated protagonist wakes up as a cannon-fodder character: vicious and cruel, and the betrothed of the scheming male supporting character in the book. Before long, the scheming male supporting character, having climbed into high society, will be the one to call off their engagement and pay him to go away. The protagonist pats his empty pockets and waits for the other man to pay him off. He waits and waits, but the plot never happens. Wait, what's going on? The protagonist decides to head into the mountains to find the other man. * The male lead transmigrates as the scheming male supporting character, who is so dirt poor he can't even afford a sword to enter a competition. He knows his betrothed is fickle and unfaithful. When they got engaged, he gave her an ancient jade pendant. That pendant has now become the bone in her leg that lets her walk. So after thinking it over for two seconds, he sits back and waits for her to cheat on him, giving him an excuse to break off the engagement and forcibly reclaim the betrothal gift. He waits and waits, but the plot never happens. The male lead decides to head down the mountain to find her. * The two meet for the first time. The protagonist: Be honest. Have you ever met anyone who admired you? The male lead: Be honest. Is there anyone you like? Silence. The protagonist: What's the ionization equation for water? The male lead: H2O ? H+ + OH - The protagonist: … The male lead: … They confirm that they're both people who transmigrated into a book. Their plans fall apart before they even get started. The two would-be invincible heroes have both seen their dreams crumble, and are now utterly broke. Between the four pockets they have, they can't scrape together even two dimes. The male lead asks, expressionless: Why did you transmigrate into a book? The protagonist breaks down: And why did you transmigrate into a book?! The protagonist and his fiance finally meet, only to find they can't stand each other. At this point, their only option is to work together. And so, the infamous Black-and-White Duo of the future is born. * The original protagonist mocks the two for stealing his spotlight, only to find himself tied up by them that very evening. The male lead: One insult costs ten thousand spirit stones. Since you're a first-time customer, I'll give you a 12% discount. The protagonist taps away on an abacus and smiles: You insulted him five times, so that's forty-four thousand in total. But those were insults against him. Insult me once and it's twenty thousand. I'm more expensive. So you owe us 144,000. Would you like to pay in full or in installments? The original protagonist: … A demonic cultivator captures a group of people to practice forbidden arts. “Heh heh heh! You can all die without worry…” A sword is suddenly pressed against his neck. The male lead: Hold on, let us run an ad. The protagonist: Reliable rescue service, five thousand per trip, guaranteed safe delivery home. Don't miss out! The demonic cultivator: … The demonic cultivator: #&%!!! Years later, after achieving fame and success, the protagonist suddenly receives all of the male lead's assets. The male lead gazes at him in silence, his face turning red all the way to his ears. The protagonist, confused, suddenly understands. He takes the other man's hand with a sorrowful expression. “Brother, die in peace. I'll take good care of your inheritance, just like I take care of my own assets.” The male lead: … (I've switched back to the original blurb. I've got some inspiration now, so I've opened a separate upcoming title for the new blurb~) Theme: What is spent in gold will come back again.