Here is the full list of all 12 One Manga Day achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Can find out prerelease shortcomings.
Can read and correct texts after translator.
Can scan new pages for the team.
Normal Ending.
Be a true professional!
Can type texts to the images.
Good Ending.
Pesky birds!
Can translate some texts from language to language.
Bad Ending I.
Bad Ending II.
Can purify pages, make them clean.