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.
This negotiating tactic, which I read
about in a book, works great.
Diese Verhandlungstaktik habe ich
aus einem Buch und sie funktioniert prima.
Una estrategia de negociación
que aprendí en un libro.
Una estrategia de negociación
que aprendí en un libro.
Ce livre sur les négociations
s’avère efficace.
Questa tecnica di negoziazione che ho letto 
in un manuale funziona benissimo.
Essa estratégia que li naquele livro
funciona muito bem.
Тактика переговоров 
из книги работает превосходно.