Full list of all 16 PumPum achievements. It takes around 3-4 hours to unlock all of the achievements in the base game on Windows.
The base game contains 6 achievements, and there is 1 DLC pack containing 10 achievements.
Nika
Bee
Kaia
Succubus
Seina
Tomato
Girl_1
Girl_3
Girl_5
Girl_6
Girl_7
Girl_8
Girl_10
Girl_11
Girl_12
Girl_13