All of them are bunny girls, meaning they’re human but with bunny ears, a bunny tail and bunny legs, while remaining human.
Pon is cute, smart and girly. Aya is adorable, flirty and girly. Yoko is flirty, sassy and dominant. Kiko is childish, playful and funny. Hana is motherly, dominant and strong.
They all use their power to turn you into a bunny girl by dressing you up and then using magic to transform you. You end up wearing a fluffy bodysuit and grow bunny ears, legs and a tail.