A lot of what we love is never published in our language — or arrives years late. So we built a reader that translates the page without breaking it, and then kept going until it worked on a phone with the network off.
Sumi does not host, crawl, or resell manga. It translates a page you already have — a volume you bought, an official free chapter, a public-domain title. Your library stays yours, and nothing about it is uploaded except the page you ask us to translate.
Pasting a white box over a balloon is easy, and it ruins the panel. Sumi erases the original lettering and re-typesets your language inside the shape that was already there — tall balloons keep true vertical Japanese, Chinese, and Korean. If a line reads wrong, tap the balloon and fix it.
On iPhone and iPad you can download the model pack once and run the whole pipeline on device — find the text, read it, translate it, erase it, set it back. On a plane, in a subway, with the network off. Nothing leaves the device.
Bugs, a translation that came out wrong, a site the extension cannot read yet, or a series we should test against — we read every message, and a bad page attached to it is the fastest way to get it fixed.