Special episode based on manga Navigation 39 entitled "The Secret Place". Its action takes place between episodes 5 and 6 of Aria the Origination.
Akari and President Aria take a walk in the eastern part of Neo-Venezia. The are spotted by Akatsuki, who follows them to try to greet Akari. They eventually end up at St Mark's Basilica, where Akari has a secret place, which is discovered by Akatsuki, Aika, and Alice.
(Source: Wikipedia)+ More
Characters & Voice Actors

Ayanokouji the 51st, Udo
Supporting
Carroll, Alice
Supporting
Granzchesta, Aika S.
Supporting
Izumo, Akatsuki
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