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