Here is the full list of all 16 Soul of Butterflies: Incubation achievements.
Find the lost chamomile bookmark
Complete the prologue
Complete chapter 1
Complete chapter 2
Complete the final chapter
I know you miss mother, but this ain't it
Find the hidden Day button
Find the hidden Evening button
Find the hidden Night button
Find the "bug" that Anders is talking about
Reveal the dark side of Anders
Find the hidden Spring Symbol
Find the hidden Summber Symbol
Find the hidden Autumn Symbol
Find the hidden Winter Symbol
Review the Old Throne in Anders' notebook