Yuuto's been sent to another world, where he is now commander, or "Patriarch" of a clan of warriors.  To survive in this new world, he uses his cell phone, his only connection to the girl he loves back home.
It's all thanks to my smartphone.
Alles dank meines Handys.
Aunque todo es por mi smartphone.
Aunque todo es por mi smartphone.
Merci mon smartphone.
Tutto grazie al mio smartphone.
É tudo graças ao meu smartphone.
Всё благодаря моему смартфону.