Reason: Character's name is stated as "Kaori" (at least in the anime). Only one instance of kaori currently exists, but even so, the tag may better be kaori_(azumanga) or kaori_(azumanga_daiou).
In a similar way as Osaka, the character is hardly referenced in the show (and, I'd suppose, the comics) by that name, so I'd still suggest an alias over a move (kaorin -> kaori_(azumanga_daiou)).