To get this achievement, you need to do the following:
On day two, you need to have 5 stars then board Charly.
Here, manage it correctly so he will give you a 5-stars rating.
Next time, go to the Stanzmachine and talk to the bouncer, ask him about Savy
A bit later, she will contact you !
Solution translated from here:
https://steamcommunity.com/app/794540/discussions/0/22635658...