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.
The ties created by the chalice 
are stronger than those of blood.
Die Bündnisse über den Kelch sind
stärker als Blut.
Esos lazos creados
son mayores que la sangre.
Esos lazos creados
son mayores que la sangre.
Leur relation prime
sur les liens du sang.
Questo legame creato dal calice 
è più forte dei legami di sangue.
Os laços criados com o cálice são
mais fortes que os de sangue.
Узы, рождённые в кубке, крепче кровных.