After Becoming the Vicious Female Side Character, I Found Her Irresistible

She transmigrated into a book, and regretted it every single day! In Records of the Flourishing Phoenix, Chu Manwan is the infamous villainess. Abusing her status as a young county princess, she does whatever she wants, acts with reckless audacity, and pushes herself step by step toward ruin. She makes trouble at every turn and eventually gets herself killed. Since Chu Man transmigrated into Chu Manwan, she's had to worry about why the romance between the male lead, Lu Ting, and the heroine, Shen Yu, still hasn't gotten started; why the second male lead, Liao Jing, still hasn't fallen for Shen Yu; why he hasn't confessed first and gotten a head start; and why the perfect man in her heart, the young Marquis Xue Heng of the Xue family, is unhappy again today. Most importantly, what about Wei Chengyuan, her cousin from the Wei family, who was hopelessly in love with the heroine and turned evil after she rejected him? Why has he suddenly stopped liking Shen Yu? What? He likes her?! Damn it, two villainous side characters are never supposed to get a happy ending! She's been worrying herself sick, but then... well, she can't deny she likes it!