The device is a mini thermal printer listed as the Flash Toy Mini on this Thai website. I think Flash Express only rebrand and sell the device, but when I looked at the windows drivers on the website, it was made for a "Flash Toy F2 Pro" which I guess is the same device but the model names are changed. I haven't come across many instances where the drivers are custom made for or by the seller for a novel device such as this one.

It uses an android app called SharpFox which was made by a Chinese company called Xiamen Angyin Information Technology co. Ltd. They also manufacture thermal printers.

I found this website of theirs, but I don't find a device even remotely similar to the Flash Toy. There's also this website but I'm unsure if those two are related.

Now I think that whoever was the manufacturer, may have discontinued the original device since it's not listed and Flash Express are just selling old stock. Then I find this Indian website also selling what looks like the same device, but the drivers they offer are made for the original Flash Toy, so the Indian sellers are further away from the source, but the device is still being made somewhere.

Anyway, finding the source of uncommon devices made in China is always difficult. But this time I've hit a dead end. Any help would be appreciated.

I found this old screenshot but can't figure out where it's from.

Edit: People in the comments have confirmed it's from The Garden of Words (Kotonoha no Niwa) (2013).

Thanks to everyone in this community for helping me out.

I live in a part of the world where powercuts are pretty frequent. 1 per day is normal. They last between 1 and 8 hours. A day without powercuts feels like a special occasion.

My machine is powered by a desktop ups which is terrible. It is only supposed to power everything for a few minutes to shutdown safely. But it is cheap and I don't know much about other affordable alternatives.

How do you folks who self host at home deal with powercuts? Any recommendations? 8 hours of uptime from a ups sounds almost impossible or totally unaffordable to me.