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 read and correct texts after translator.
Can scan new pages for the team.
Can translate some texts from language to language.
Normal Ending.
Be a true professional!
Can find out prerelease shortcomings.
Good Ending.
Pesky birds!
Can purify pages, make them clean.
Bad Ending II.
Can type texts to the images.
Bad Ending I.