Full list of all 56 West Sweety achievements. It takes around 0-1 hour to unlock all of the achievements in the base game on Windows.
The base game contains 36 achievements, and there is 1 DLC pack containing 20 achievements.
First play game with Haru
First play game with Izumi
First play game with Risako
First play game with Sachi
Win the impression of Haru
Win the impression of Izumi
Win the impression of Risako
Win the impression of Sachi
Haru has belonged to you
Risako has belonged to you
Izumi has belonged to you
Sachi has belonged to you
Unlocked Haru's CG
Unlocked Risako's CG
Unlocked Izumi's CG
Unlocked Sachi's CG
Have all of Haru
Have all of Risako
Have all of Izumi
Have all of Sachi