latest kk launcher install itself automatically after i uninstall and reboot my phone

[yken]

I have installed many apks until now. I used many rooted phones, flashed Roms, this is first time i saw.
KK launcher i installed. I uninstall. After i reboot my phone it comes again. I use LG G5. Not rooted, latest version.
IN startup there is not a sign of this launcher. I disable wifi, data, after reboot it comes, it install itself silently.
anyone have a idea?