How to save files from line app

How to save audio messages from line naver app in my android phone
Audio message => saving is not needed, LINE will store it in your phone automatically once it has been played at least one time. Just go to your sdcard folder > Android > data > jp.naver.line.android > cache > mo > (folder) > [and your audio message is here, just find it, any file with extension .aac is audio message]
Video message => just play it, and then press option button for android phone (no sure about iphone button) and copy to any folder you want to keep.
Picture => view it, press again the pic and save. Via: askmefast