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.
Moroha is a quarter-demon born 
 between a half-demon and a human.
.موروها ربع شيطانة ولدت من بشريّة ونصف شيطان
A Moroha é um-quarto-de-youkai,
filha de um meio-youkai e uma humana.
Мороха — демон на четверть,
дитя человека и полудемона.