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.
I can then search for a way to go home
without worrying about a thing!
kann ich mich danach sorglos der Suche
nach einem Weg nach Hause widmen.
así podré buscar un modo
de volver a casa.
así podré buscar un modo
para volver a casa.
je pourrai chercher un moyen
de rentrer sans aucune inquiétude !
potrei cercare un modo di tornare 
a casa senza avere nient'altro a cui pensare!
significa que posso procurar um jeito
de voltar para casa sem me preocupar!
я без проблем смогу искать 
способ вернуться домой!