Here is the full list of all 10 Winter Novel achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Just a flying snowball.
Vlad's car.
End of the game.
Sveta's smile.
Sveta's idea.
Sveta in tears.
Sveta takes documents.
Sad Vlad.
Sveta sleeps at work.
Sveta sleeps at night.