So far so good. Since some people don't seem to understand the beginning, I'll explain.
It is about a girl from our world who transmigrated into Zhao Yaoyue, a rich Megumi Kato, who has the cheat to transmigrate into characters in webnovels, mangas, and other in progress literary works when she goes to sleep. So it's like a double transmigration, but she is able to come back to reality. Also, I wouldn't put any stock into the cover pic, as she looks nothing like that at any point of the novel.
She has to create iconic or high profile characters in the dreams in order to be eligible to get the skills related to the character she possesses into the real world. The more "classic" the character, the longer the skills can last for her.
On her first try, she made a side character a Mary Sue (of the crappy type), and out of no-where (plot-wise), killed the main character of an existing webnovel. This led the fans of that webnovel author to berate him, and the author apologized, saying he was drunk and erased the character and revise his plot.
Not only does Yaoyue receive no power-ups, but she also experience bad luck in real life due to the backlash, and so Yaoyue reflected on her mistakes. She goes on to possess a different side character learning from her mistakes. The logical choice is to take on characters with appropriate skill sets for appropriate story theme with appropriate story actions. She can't just willynilly add random power-ups to the character she takes over and do whatever she wants (well technically she can, but it would be highly unlikely to create a "classical" or "popular" character). And the story goes on.
Quite frankly, the idea is fun. Is it original? It's a character self-insert type of novel, and no doubt she will become a Mary Sue in reality once she gains a ton of powers from parodied works. In other words, its a more blatant wish-fulfillment novel. If that's not your taste, so be it. It's really a story that either you would like or dislike.
Now with all said, you should throw out any initial bias you may have about this. This is not an otome game simulator, nor will the protagonist quickly become a martial arts expert. She has yet to have a love interest that stays with her, and not every story she delves into will get an ability from the character she took over. In the end, she is her own person, and has the power to choose whether to be either the side-character or main character in real life. I would recommend reading at least the first 100 chapters before making your own conclusion.
