Mint_Raccoon

The closest I can offer to what you’re asking for is that there are some e-readers that use Android. I own a Boox Page, which is one of those, and I’m happy with it. Boox products are a bit on the pricier side, but they do offer features that can be difficult to find on other manufacturers’ offerings, such as a micro SD slot.

There’s a homebrew app called ftpd that you could use, but it only works on a hacked system and that requires an SD card reader to initially setup.

All you have to do is download the APK from the F-Droid website and enable installing from third-party/unknown sources in the Settings app (some versions of Android ask automatically when you try to open the APK). I also recommend disabling unknown sources for your browser once you’re done as a security measure.

One title that instantly comes to mind for me is Genesis of Aquarion. I admittedly never got very far into it because it’s really awkward to watch with other people around (looking at you mecha combining scenes). I actually really only checked out the show because I heard the OP in Taiko no Tatsujin Portable DX.

Anyway, the song is also called Genesis of Aquarion and is by AKINO.