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.
Rats are useless creatures 
 with no discipline.
.الجرذان مخلوقات تافهة وغير منضبطة
Ratten sind unorganisierte Wesen
bar jeglicher Disziplin.
Las ratas son inútiles
y no tienen disciplina.
Las ratas son inútiles
y no tienen disciplina.
Les rats sont des entités chaotiques,
sans discipline.
I topi sono esseri disordinati e indisciplinati.
Ratos não são nada além
de criaturas inúteis e sem disciplina.
Мыши — беспорядочные
и неорганизованные существа.