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I don't understand. You can keep your choices, both for PC/Mac/Linux, where the process is transparant, and for Android, where you have to do one manual action (it is explained in game).
Make sure you use the latest versions of both season 1 and season 2, and read the release notes
For the exporting part here: Chapter 1-7 Service release version 1.0.1 - Light of my Life - Season 1 by Naughty Road
For the import here: Light of my Life S2 - Chapter 8 released! - Light of my Life - Season 2 by Naughty Road