[Before You Read: The whole family transmigrates into a book; told from the heroine's perspective; sweet romance, devoted couple, feel-good power fantasy; clever mind games and political scheming; the heroine is goofy and funny; the male lead has a wonderful personality; comedy, heartbreak, and satisfying moments.] Wang Jiao, an ordinary college student, unexpectedly transmigrates into an ongoing novel called The Prince's Darling, where she becomes Su Tian, a disposable fake eunuch... Then she discovers that her younger brother has transmigrated too, followed by her mom, and even her dad. As the only one in the family who knows the plot, Wang Jiao plans to lead them in joining the novel's original male lead, Prince Yu. But circumstances force her to cling to the crown prince instead... Why would this twisted crown prince fall for a eunuch???
Fortunately, I didn't see the male protagonist's love for the female protagonist. In addition to being very tolerant, the male protagonist basically has a cold feeling and rarely writes anything.