I had to get something off my chest. I just realized something crazy about the character Kyo Ijuuin from Junjou Romantica. If you've been keeping up with the ongoing series, you're probably already aware that Ijuuin is the author of the fictional series; "The Kan." I realized something crazy about Ijuuin. In episode 4 of Sekaiichi Hatsukoi 2, Yoshino Chiaki and Yuu Yanase are seen in a flash back of their first year of Junior High School reading "The Kan." If both the characters were 12-13 years old at the the time and are currently 28, that means 15-16 years ago, Ijuuin had to have been at the very least of high school age to even start The Kan series. Therefore, either Ijuuin is in his late 30's to early 40's or he is involved some kind of a time paradox which manipulates the other characters and their flow of time (like how they encounter the other characters unexpectedly several times).
