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