The original form of the two sisters, Liyu and Limo, wasn't human, but rather a spirit beasts that transformed into abyss demons.
Unlike other demon kings who were thrown into Ancita continent to search for information about the protagonist group, these two children mostly stayed in Winter Forest.
Even though they learned transformation magic, their lives were not much different from ordinary abyssal demons.
Since these two children could transform into human form, Yumo selfishly hoped that they could give up their daily routine of eating raw meat and blood and learn human habits instead.
However, the reactions of the two sisters to Yumo's proposal were completely opposite.
Limo still longed for wild animal life and usually maintained her giant wolf form.
She liked to eat live prey and was not interested in the cooked food that Yumo suggested, often making Yumo very frustrated.
She could be considered a headache-inducing child.
