TBH dancers Kiaro and Skuro appear before Ichiro and Kuko. Ichiro says that he's sure they're people he used to know, but the dancers don't remember it. Meanwhile, when Matenro and Fling Posse arrive in their arena, they're ambushed by assassins.
Now that I think about it, we don't 
know anything about Doc's past.
بالتّفكير في الأمر، نحن لا نعرف
.أيّ شيء عن ماضيه
Da fällt mir ein, wir wissen ja gar nichts
über seine Vergangenheit.
A todo esto, no sabemos nada
de su pasado, ¿no?
Ahora que lo pienso,
no sabemos nada de su pasado.
D’ailleurs, j’y pense.
On ne connaît rien de son passé.
Ora che ci penso,
Agora que pensei nisso, não sabemos
nada sobre o passado do doutor.
А мы ведь практически ничего
не знаем о его прошлом.