@Bladestone
Strongly disagree if we are going to assume which animal is which based on personality.
Yes, Seo being a hedgehog to illustrate her (potential) contradictory social behavior makes sense.
Yes, Hamin's sometimes cool and distant, other times warm and supportive personality does ressemble a cat.
However, Sungah being the fox and Yuri being the rabbit really makes no sense.
Sungah has been shown to be emotionally fragile, dependent, and easily frightened.
Not a fox.
Yuri has been shown to be strong, assertive, and largely self reliant (at least, when compared to Sungah).
Not a rabbit.
It would make much more sense for them to be the reverse.