After the battle inside the Ziggurat, Chizuru and Hayate are horrified to find out that their victory would have cost Koyori her life. They agree to help Tazuna and Koyori, even though they're out of the fight now.  They tell the two of them that in order not to be found in the real world, they need to come up with a name to use inside the Ziggurat when they fight.  After a bit of thought, Tazuna and Koyori's new name becomes "Single Gear".
But Dagger and Blade aren't 
that easy to beat, young man!
!لكن ليس من السّهل هزيمة خنجر ونصل أيُّها الصغير
Aber so leicht besiegt man
Dagger und Blade nicht.
¡Pero no subestimes
a Dagger y a Blade, chico!
¡Pero no subestimes
a Dagger y a Blade, chico!
Mais tu ne devrais pas
sous-estimer Blade et Dagger !
Ma non prendere alla leggera il Dagger e il Blade,
Mas Dagger and Blade não são 
tão fáceis de abater, jovenzinho!