Limit of the Chinese Rose L.o.t.C.R

Xiao is a 32 year old, who's an author to a few popular books. One day as she was writing a new part in her story, she was interrupted by her friends. Her friends told her to get dressed as they had something to show her.
After she had got dressed up, her friends and her left. They drove to a restaurant. Xiao was confused. Her friends told her that today was the day she saved them and that they wanted to celebrate, but they had a surprise waiting for her in the room they had reserved for them. They went to the room and Xiao’s childhood best friend was there. All five of them talked.
Ru, Xiao’s best friend, was a kpop idol in a group called Warriors. He told his group about her and now they want to meet her, which they do.
After a while, the boys and Xiao’s friends had stopped drinking as they all had things they were doing the next day so they were slowly getting back to being sober. Xiao was also getting sober but it only took her a few sips of tea to do so.
They all head back to their vehicles. Xiao was walking by Ru when she got hit. She fell into a coma and had been transported inside her book, the one she was writing a new part of. She became her main character who's on a dangerous mission while she's still in college. The time the book takes place is in ancient China.