I have Mitsukuni Haninozuka ("Honey-senpai") from Ouran and Rin from Naruto! Honey's probably more recognizable unless Mayuri was really into Naruto (and IDK how much of Rin had been revealed ~2010, actually?) since Ouran started back in...2002, and he was a main character from the get-go!

I'm totally okay with her recognizing either of them. They might not believe her if she feels the need to bring up them being fictional, though, because haha...