The Beast Player Erin - Season 1 Episode 43 Beast Healer

Beastinarians from Lazal come, learning about Erin's ability to tame Ohju without the use of a Silent Whistle, despite the fact that she is supposed to carry one under Law. They order Erin into using the whistle on Lilan, but Erin refuses. As one of the beastinarians blows a whistle, Lilan goes into a blind rage and injures the beastinarians. This forces Erin to use the Silent Whistle on Lilan. The Whistle gives Lilan a horrifying aftershock and she bites off several of Erin's fingers. This causes Erin to understand what her mother meant by "Ohju are beasts." From there, Erin decides to go onto the path of the "Beast Healer" a beastinarian who shares the joys and pains of the Ohju and uses the Silent Whistle, just like her mother did with the Touda. Erin is ordered to go to the Royal Palace with Lilan and her family.