Hanabishi Kaoru is a junior in college, living out an ordinary life of studying and friends. One day, he meets a girl whom he discovers is his old friend Sakuraba Aoi, a girl whom he was supposed to have an arranged marriage with. Together, the two rediscover aspects of their pasts that they had tried to suppress while setting out in their lives with one another. Unfortunately, there are a lot of unwanted guests that keep lurking around in their lives. How is their love going to unfold?

Ai yori Aoshi: Enishi - Miyuki is a 16 minute Christmas special set before the beginning of the first season. Based on manga chapters 43-44 and would also fit as episode 21.5 of the first season.

Two years after meeting Aoi, Kaoru and gang are still up to their normal habits. Kaoru now in grad school and the tenants being as rowdy as ever what will become of Aoi and Kaoru's love. Two years has passed since Aoi and Kaoru were freed from the bonds of their families. They continue to live their normal lives with their usual friends in their house.

A catastrophic earthquake has left Tokyo, and most of the Earth for that matter, under the sea. Aika is a salvager who retrieves various remains from the watery ruins. When Aika accepts the dangerous mission of locating and obtaining the mysterious Lagu, she discovers that she's not the only one after it.

Aika Sumeragi, a sixteen year old high school student, offers her services as a C-class Salvager by spreading posters at school after getting her C-class Salvager license. She is immediately hired by Eri Shinkai, Aika’s wealthy class president and founder of the Treasure Hunting Club. After being introduced to Karen Minamino, a mysterious girl with unknown background and a butterfly insignia on her left breast, the club starts an oceanographic expedition on Eri’s private cruiser to uncover the riddles encoded in Karen’s insignia. During their journey more questions arise as Risako Nagisa, the schools form teacher, attempts to sabotage the expedition and capture Karen, and a suspicious underwater airport is found by the team with Aika’s beloved Beluga submarine. While the pieces of the puzzle slowly come together, Karen’s life is turned upside down when the team discovers ancient technology to which Karen is the key and traces of biogenetic experiments.

Aika is a smart and athletic high school girl. She is so competent that she successfully passes the salvagers license test, obtaining a C-class license. Yet, she is young and hotheaded, so much so that Gota still treats her as a child. Due to this personality, no one is willing to hire her for salvaging jobs. Since she had taken the trouble to get her license, she decides to post an ad in her school to attract clients. She manages to get the attention of Erika, a daughter of a rich family and the leader of the treasure hunting club. She asks Aika to salvage something from the sea and Aika delightfully accepts the request. However, upon seeing the state-of-the-art submarine loaded onto Erika's private cruiser and discovering their destination, Aika realizes the terrible nature of her assignment. This results in a clash with a group of high school girls in the southern islands. Who is the mysterious girl named Karen? So begins Aika's newest challenge!

The new OVA, titled “AIka Zero,” will take place 3 years after Aika R-16 & 7 years before the original Agent Aika classic. That puts our heroine at 19 years old, & the character designs reflect as much. 19-year-old Aika seems like a cross-over between the cute & young 16-year-old Aika from R-16, & the sexy mature 26-year-old Aika from the original.

A bonus episode about Aika and company moving to a new office.

New Aikatsu series.

Aikatsu Friends! second season.

Raki Kiseki is a second-year middle school student who transfers to Star Harmony Academy to become an idol. However, when she uses an Aikatsu Pass she received from her big sister (an Aikatsu engineer), something mysterious happens. Lots of doors appeared before her, and when she opens them, she meets Aikatsu idols she never knew before, such as Yume Nijino (Aikatsu Stars!). Raki vows to design her own premium dress and perform in it on stage.

"Dream School Grand Prix" to decide the No.1 idol school among five schools representing the Aikatsu world will be held! In this competition where top idols representing each school compete on stage, Dream Academy's new idol Noel Otoshiro is selected as one of them?! For each idol's dream, a new story starts running into the shining future!