Sequel: (Type subgenre) This is a title which continues a series. It may have a different name but is canon material.
OVA: (Type) OVA = Original Video Animation. These are the direct-to-video anime titles done in Japan. Often, OVAs can start a franchise (Tenchi Muyou! Ryououki), start a TV series (Mahou Tsukai Tai!), be a sequel to a TV series (Love Hina Again), or be a stand-alone title (Aa! Megami-sama! OVA). Sometimes, the OAVs are named the same as the TV series and thus will sometimes have the term OVA listed after the title's name to separate it.
| Title | Rating | Synopsis |
|---|---|---|
| P | ||
| Plot of the Daitokuji Financial Group | Rent | See Project A-ko 2: Daitokuji Zaibatsu no Inbou |
| Project A-Ko 2 | Rent | See Project A-ko 2: Daitokuji Zaibatsu no Inbou |
 Project A-ko 2: Daitokuji Zaibatsu no Inbou |
Rent |
It has been three weeks since the events in Project A-Ko and still A-Ko has great difficulty waking up in time to race to school with C-Ko in tow. B-Ko is still desperate to make C-Ko her own and launches a new plan to do just that. Her father, the head of the Daitokuji Finacial Group, takes B-Ko's plans for a new mecha and uses them for his own plan to attack the alien ship that had crashed into Graviton City, thus grabbing its technology for himself. |
| Project A-Ko: The Plot of the Daitokuji Corporation | Rent | See Project A-ko 2: Daitokuji Zaibatsu no Inbou |
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