The reason Eryke called her "little devil" was because of the endless trouble she caused him. Just solving her problems was headache-inducing and a complete waste of his time.
She wasn't the type to be bullied, far from it. She was strong, and her sense of justice was even stronger which was the real problem.
Having a knack for fighting and beating bullies also lands you in trouble though.
This was an orthodox faction. Unlike the Demonic or Shadow factions, they placed great importance on discipline and face.
And as her master, Eryke had to explain her actions every single time.
More than once, Eryke felt an inexplicable urge to kill and slaughter everyone in the Mount Hua Sect. It was a subconscious impulse, nothing more, he would never actually do such a thing. Would he?
Anyway, he looked on as an angry man with a bald head stormed in, dragging along his equally bald-headed disciple. The disciple's blue eyes glared defiantly, but his clothes were torn to shreds.