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 even if you run, 
my clone will be waiting for you!
لكن حتّى لو هربتُما، ستكون نسختي بانتظاركما
Aber auch wenn du uns entkommst,
wartet auf dich bereits mein Doppelgänger.
Pero vayas donde vayas
te esperan mis clones.
Pero vayas donde vayas
te esperan mis clones.
Ma, anche se scappate, davanti 
a voi c'è un mio alter ego!
Mas mesmo que corra, o meu clone
 estará te esperando onde for!