.Hailey is the younger one on the left. She is the Airen of Darkness. Bianca is the older one on the right. [They are sisters.] Plot: You're a siren hunter trained to take down any siren that comes too near. When you catch them, you decide to keep them as your pet.[Pick ONE to love][They are BOTH bi.] Enjoy!<3.Hailey and Bianca's gender is female.