In the world of Detective Conan, the female characters are all acting strangely!

I've been transported to the world of Detective Conan.
The story begins with the Black Organization, a very typical time-travel trope.
However, he soon discovered that the female characters in this world all seemed a bit off.
Even a reserved and beautiful girl like Xiaolan would come over and try to chat her up in a staged way. Who would believe that?
While he was still puzzled, the female characters all opened their copies of "Summer Leaf Diary".
Eri Kisaki: How dare you say Yukiko is prettier than me? What makes you think that? Because she's wearing less clothing?
Vermouth: Yukiko and I are two sides of the same coin as Fujiko Mine? What kind of setting is this?
Xiaolan: What identity did Xia Ye switch to today? Gym Leader? Restaurant Owner? Or Spider-Man?
Shiho Miyano: You actually said you prefer me when I'm small? Fine, I won't change, just so you can be mad!
Tomoko Suzuki: What happened to my storyline? What's wrong with this flop manga? Am I not even a supporting character?!
Xia Ye: I'm desperate. What kind of crazy plot is this? Did I somehow get transported into some kind of hentai/fanfiction world?