The "Feeding Show" plays 3 times a day. It ends when the prey girl been crushed and entwined by the Lamia girl.

However it's just a fake show for pleasing people like you. It was all acting. They broke a hidden blood bag and the "prey girl" acted like her head been crushed. Actually they are good friends.

There is something troubling the prey girl. When acting, she have to pee on her friend when her friend hugging her tight. It is quite embarrassing.