After I Transmigrate into a Book, the Plot Goes Crazy!

[A heroine who can’t stand injustice and fights back without hesitation x a devoted, protective, straightforward top student]

Yu Tang, an office worker fired for beating up a sleazy client, accidentally transmigrates into the unfinished novel written by her late best friend after eating expired food.

How did her friend, who was supposed to have a sweet romance plot, turn into a genuinely hardworking woman who takes studying and her career seriously?

Yu Tang only wants to return to the real world, but she runs into a top student who has secretly loved her for ages and pursues her with no games.

He punches thugs and kicks scumbags, too. Has this plot gone completely off the rails?