Ai Mikami

Originally assumed to be two separate Diary users, Marco and Ai are in fact both the Seventh Diary user. Ai appeared early in the series working undercover as member of the Onukata cult with her friend Orin Miyashiro to spy on Tsubaki. She returns later, this time with her boyfriend, Marco to eliminate the threat that is Yuki and Yuno. When first introduced, Marco and Ai were using apprentice diaries which were assume by Yuki and his allies as their real Future diaries with Marco's The Unbeatable Brawler Diary predicting attacks before they happened, while Ai's Flirting Diary locates any man