Here is the full list of all 15 Love Sucks: Night One achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Prayed at an Altar
Learned Something about the World
So Quickly
Wait, what?
You're alive aren't you?
Don't Stop
They make them this big?
Met a Non-Ghost
No Glove, No Love
Survive Time with Jan
Anna gave you something back
You fixed it
Finished Night One with Anna
Finished Night One with Jan
Survived Night One