DOES THAT MEAN I’M GOING TO LOSE MY PROGRESS?
Certainly not!
However, to ensure that you data can be migrated to the new App, you are going to need to create a Skullgirls Login (you will be prompted to do so as soon as you open the 1.6 version of the App). You will need your Skullgirls Login in order to continue playing in the new version with your existing data.
If for some reason you do not login to Skullgirls and create a Skullgirls Login between now and January 15th, your data will be lost once the LINE Skullgirls version shuts down.