Time Travel into Ouran High School's Male Public Relations Department

Because of a car accident, Pei Anan traveled through time. Traveling back in time to the male public relations department of Ouran High School, my favorite anime in my previous life, Pei Anan, who was lying in the crib, looked at his older twin brother and had already begun to plan how to skip a grade. The feeling of a close friend, as another person besides each other in the world of twin brothers, Hikari Hitachi believed that Pei An'an was his sister, but Kaoru Hitachi, who was more delicate in mind, did not see through his own heart this time and classified this feeling as his sister. Pei An'an returns to Japan, transfers to her twin brother's class, and then joins the male public relations department as an assistant. What different plot will happen? Let us stay tuned (Time travel type, the plot follows the anime. Lightning protection: The plot will be slightly different. There will be plots that are not in the anime to increase the emotional line. The heroine Pei Anan is the childhood sweetheart of the Hitachiin twins, so she will be the first to tell who is light and who is Xin. And the Xin I wrote is what I think Xin is)