A two-part sequel series (often referred to as episodes 2 and 3) released by Pony Canyon.

If you are looking for what would have been "episode 4," it would likely have adapted manga Chapter 4 ("A Certain Adventure") or the later arcs involving more significant character development for Nami and Kana. Where to Find More

For those wanting to continue the story where the anime left off, the Aki Sora Manga (available through Akita Shoten) is the only source for the full narrative. You can also find community discussions and reviews on platforms like MyAnimeList and Anime News Network . Reddit·r/manga

The manga concludes the complex relationship between the siblings Aki, Sora, and Nami, whereas the anime leaves most plot threads unresolved.

A single OVA episode released with the third volume of the manga.

The manga explores the fallout of their father's past actions and how those secrets influence the siblings' present choices, a plot point barely touched upon in the OVAs.

Since the anime ends abruptly after the third episode, the "better" version of the story is widely considered to be the . Here is why readers prefer it over the OVA adaptation: