Here is the full list of all 20 Blind Girl achievements.
Drink cocoa
The beginning of adventure.
Go to the hidden map in the forest.
Jump into the water.
Grant every request of the fairy.
Get it from him.
..Pick it up.
....Get it from him.
Betray her.
Stay silent.
Make argument.
The witch take all the magic.
Eat poison apple
..Kill innocent that.
Turn into a dragon.
Come to a good end.
Come to a sad end.
Find someone in the woods.
Go to the bonus room.
Drink three times.