History Manga / Aria

* '''''ARIA the Avvenire''''' (2016), a trio of {{OVA}}s [[MilestoneCelebration celebrating the 10th anniversary of the franchise]]. They tell of the new adventures of a new generation of Undine, with Akari and her friends now passing on their knowledge as well as love for Neo Venezia. The [=OVAs=] were included in the Blu-Ray rereleases of the three original seasons. As part of the anniversary celebrations, a RhythmGame of all things called ''ARIA Aqua Ritmo'' was released on January 2016. The game features all ''Avvenire'' characters and the original series' soundtrack and makes use of the [=Live2D=] engine.

* '''''ARIA the Crepuscolo''''' (2021): A movie that focuses on Alice and the rest of the main Orange Planet cast sometime after ''Avvenire''. Athena's original seiyuu, Creator/TomokoKawakami, is replaced by Creator/RinaSato after the former's passing in 2011.
* '''''ARIA the Benedizone''''' (2021): The final installment, focusing on the Himeya Undines.

* '''''ARIA the Benedizone''''' (2022): The final installment, focusing on the Himeya Undines.

* '''''ARIA the Crepuscolo''''' (2020): a movie that focuses on Alice and the rest of the main Orange Planet cast sometime after ''Avvenire''. Athena's original seiyuu, Creator/TomokoKawakami, is replaced by Creator/RinaSato after the former's passing in 2011.

In a move that caught many in the fandom by surprise, a trio of {{OVA}}s were announced, [[MilestoneCelebration to celebrate the 10th anniversary of the franchise]]. Entitled '''ARIA the Avvenire''', they tell of the new adventures of a new generation of Undine, with Akari and her friends now passing on their knowledge as well as love for Neo Venezia. The [=OVAs=] were included in the Blu-Ray rereleases of the three original seasons. As part of the anniversary celebrations, a RhythmGame of all things called ''ARIA Aqua Ritmo'' was released on January 2016. The game features all ''Avvenire'' characters and the original series' soundtrack and makes use of the [=Live2D=] engine.

2020 saw to an announcement of a new ''ARIA'' animation for its 15th anniversary for the Winter 2021 season. The project, '''''ARIA the Crepuscolo''''', is a movie that focuses on Alice and the rest of the main Orange Planet cast sometime after ''Avvenire''. Athena's original seiyuu, Creator/TomokoKawakami, is set to be replaced by Creator/RinaSato. The end of ''that'' movie revealed that ''Crepuscolo'' is actually the first of a movie series, with the next installment ''ARIA the Benedizone'' (focusing on the Himeya Undines) to come in 2022.

2020 saw to an announcement of a new ''ARIA'' animation for its 15th anniversary for the Winter 2021 season. The project, '''''ARIA the Crepuscolo''''', is a movie that focuses on Alice and the rest of the main Orange Planet cast sometime after ''Avvenire''. Athena's original seiyuu, Creator/TomokoKawakami, is set to be replaced by Creator/RinaSato. The end of ''that'' movie revealed that ''Crepuscolo'' was to be a movie series, with the next installment (focusing on the Himeya Undines) to come in 2022.

2020 saw to an announcement of a new ''ARIA'' animation for its 15th anniversary for the Winter 2021 season. The project, '''''ARIA the Crepuscolo''''', is a movie that focuses on Alice and the rest of the main Orange Planet cast sometime after ''Avvenire''. Athena's original seiyuu, Creator/TomokoKawakami, is set to be replaced by Creator/RinaSato. The end of ''that'' movie revealed that ''Crepuscolo'' was to be a movie series, with the next installment (focusing on the Himeya Undines) to follow.

2020 saw to an announcement of a new ''ARIA'' animation for its 15th anniversary for the Winter 2021 season. The project, '''''ARIA the Crepuscolo''''', is a movie that focuses on Alice and the rest of the main Orange Planet cast sometime after ''Avvenire''. Athena's original seiyuu, Creator/TomokoKawakami, is set to be replaced by Creator/RinaSato.

* ImprobablyFemaleCast: It is explicitly stated that being an Undine is one of the few ways that a female can become a professional gondolier, so you won't see too many men in the rest of the story. Only three of them (four if you count President Aria) are cast regulars compared to the six company women.

* {{Iyashikei}}

* WaterIsWomanly: The Undines are gondoliers in Neo-Venezia and all of them are young, beautiful women.

* WaterIsWomanly: The Undines are gondoliers in Nero-Venezia and all of them are young, beautiful women.

* EmpathicEnvironment: In Chapter 38, Aika's crying over Akira being badmouthed my other Undines is punctuated by a rainfall that day. When Akira has a heart to heart with the girl and Aika regains her composure, the rainfall stops and it's a sunny day.

* ComingOfAgeStory: Mostly for Akari, but for Aika and Alice too. The manga chapter "Cait Sith" touches on this in a more concrete way, showing Akari's physical maturity by [[spoiler:her [[InisibleToAdults finally losing her ability to see Cait Sith]] after their last encounter]].

Akari writes extensive letters describing her experiences to someone on Earth (who is referred to as ''Manhome'' as a ShoutOut to the works of cult SpeculativeFiction writer Creator/CordwainerSmith). Eventually, however, it is revealed in the manga to be the readers of her blog, while in the anime it is Ai, a young girl who was a customer in the first episode.

2020 saw to an announcement of a new ''ARIA'' animation for its 15th anniversary for the Winter 2021 season. The project, ''ARIA the Crepusculo'', is a movie that focuses on Alice and the rest of the main Orange Planet cast sometime after ''Avvenire''. Athena's original seiyuu, Creator/TomokoKawakami, is set to be replaced by Creator/RinaSato.

2020 saw to an announcement of a new ''ARIA'' animation for its 15th anniversary for the Winter 2021 season. The project, ''ARIA the Crepusculo'', os a movie that focuses on Alice and the rest of the main Orange Planet cast sometime after ''Avvenire''. Athena's original seiyuu, Creator/TomokoKawakami, is set to be replaced by Creator/RinaSato.

2020 saw to an announcement of a new ''ARIA'' animation for its 15th anniversary for the Winter 2021 season. Athena's original seiyuu, Creator/TomokoKawakami, is set to be replaced by Creator/RinaSato.

* TimeTravel: [[spoiler:Akari does this by crossing a bridge to witness the birth of Neo-Venezia]], complete with age shifted versions of much of the main cast. Like a lot of the weird stuff in the series, cats are involved. And there's a bit about a letter delivered from the past. It's not really time-travel, but the effect is much the same, as Akari is pulled into an odd bubble of space/time by the woman's cat-as-little-girl so that the letter could finally be delivered.

* VisibleSigh:

** An magic train, which transports cats into the afterlife is a clear ShoutOut to ''Anime/NightOnTheGalacticRailroad'', as mentioned earlier.

* NewYearHasCome: Both adaptations feature an installemt covering Neo Venezia's New Year celebrations: the 12th episode of ''The Animation'' (occuring during Akari's second year as an Undine), and Chapter 9 in the manga (her first year).

** The opening tune for the first season, "Undine", reappears in the second, during the arc in which Akari bids goodbye to her old gondola. "Undine" [[LastEpisodeThemeReprise closes]] [[BookEnds off]] the last season too.

** The opening tune for the first season, "Undine", reappears in the second, during the arc in which Akari bids goodbye to her old gondola.
*** And it closes off the last season too.