That probably has very little to do with the game, and more to do with either your free storage space or some issue on itch itself. I've heard nothing from any of the other android users and it was downloaded a LOT.
Best thing I can tell you is try downloading the android version from my MEGA link here:
https://mega.nz/file/xcFygQYa#GAaL4YyZOcn2NSQmvEZ39RVhrZyWof_vkpXPS41DWKI
Select all of the text in that link, then PASTE it into your android browser. If you just tap the link, it may want a passcode (which is included in the link after the # sign). Most phones will only paste up to that # sign and not get the entire link.
I have a 250gb Sd card in my phone that I use for gaming and such plenty of storage:), I found out yesterday other people such as creators are also having the problem ...
I downloaded the PC version and ported it to joiplay I've finished all 3 of your novels since my last comment so I'd like to say, good job I enjoyed everything you did story was flawless...can't wait for more