If the Arena where fairytale themed

I'd say my Lily would be "Snow White", since she's pretty dense and could probably get duped three times (in the original story). She's too trusting and would probably wait for a "prince" to save her ***.

Nil could be "The Boy"-- Er... I mean... "The Girl That Couldn't Shake or Shiver" from Grimm's Tales. Just basically a story where it was a boy that didn't know how to "shake or shiver" from fear; so, he went on this journey to find something that would make him "shake or shiver" but couldn't find it even when he confronted demons and all that nice stuff. Eventually, his wife - offered from spending three nights at a haunted house with the demons - got a bit fed up with him ALWAYS talking about how to "shake or shiver" and getting all depressed. Someone suggested her to put ice down his shirt while sleeping; so, when she did, he started to shake and shiver, and he was finally pleased and settled down.

--- But he never knew how to fear. The title itself should be the scope of her character, but opposite of the person in the tale. She can't "shiver" because she can't feel cold; but, she might "shake" because she's angry, not from fear.

Eh? I'll think of the others when I can remember which tales I would base characters off of.