Moroha once had a master named Yawaragi, who was keeping a life-threatening secret. In order to resolve the secret and protect her pupil, Yawaragi made an agreement with Jyubei.
in a blacksmith rats' workshop 
deep in the mountains.
.في ورشة جرذ حدّاد في أعماق الجبال
in un'officina nascosta nelle profondità della montagna.
numa oficina dessa vila,
escondida no meio das montanhas.