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.
You're going to be even busier soon,
Du wirst schon bald
alle Hände voll zu tun haben,
Pronto volverás a estar ocupada.
Pronto volverás a estar ocupada.
Presto sarai ancora più indaffarata,
Você vai ficar ainda mais ocupada em breve,
Скоро у тебя будет ещё больше дел,