Reborn as the Male Lead's Aspiring Canary, I Choose Option Two from the Start

[Transmigrate into a book + heroine pursues the hero + romance in a rented apartment + second male lead takes the lead + competing for the heroine + marriage first, love later + groveling ex] A 35-year-old woman with a young heart transmigrates into a book as a 22-year-old college student. Han Yiyi finds herself inside an angsty romance novel, as the hero’s most beautiful kept woman! The original plot is outrageously messy: the hero loves the heroine, the heroine loves the second male lead, the second male lead loves the second female lead, and the second female lead loves the hero! To help the heroine, the hero keeps the second female lead as his mistress, because he intends to reserve the position of his wife forever for the heroine! Heartbroken, the second male lead leaves for parts unknown! The heroine gives up on the second male lead, but afraid of losing the hero, she turns around and tries to steal him back! But the kept woman thinks she’s found true love and is determined to marry into the family, constantly competing with the heroine! To prove his loyalty, the hero kills the kept woman to entertain the heroine! After the kept woman dies, the second male lead returns, kills the hero and heroine, then takes his own life at the spot where the kept woman was sunk at sea! So everyone in this book dies? What is wrong with this author? After transmigrating into the book, Han Yiyi goes after the second male lead, tricks him into living with her, and coaxes him into having a baby! As for the hero and heroine, of course she does everything she can to get them together...