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'm so glad you're safe, Yuu-kun!
Ich bin so froh,
dass es dir gut geht, Yuu-kun!
¡Menos mal que estás bien, Yuu-kun!
¡Menos mal que estás bien, Yuu-kun!
Ouf, tu es sain et sauf !
Sono contenta che tu sia salvo, Yuu!
Fico tão feliz que você está bem, Yuu!
Я так рада, что ты цел, Юто!