Handy guide for Character distinction:
Alpha: Elf, long hair. Boobs.
Beta: Elf, short hair. Boobs.
Gamma: Human, long black hair. Beauty mark. Boobs.
Delta: Animal girl. Boobs.
Epsilon: Human, brown hair, twintails. (Fake) Boobs
Nu: If you think it's her, you're probably wrong.
It should be...