Aardwolf's personality is unknown; she is never seen interacting with other friends.
Role in the Plot
Aardwolf debuts off-screen in Episode 1, being eaten by a large Cerulean at the gate separating the Savanna Area and the Jungle Area. Serval hears her screaming, but by the time she and Kaban arrive, Aardwolf is nowhere to be found.
Aardwolf appears very briefly in animal form in the middle of Episode 12. Assuming the anime to be true to lore, her reversion to an animal indicates she was killed by the Cerulean in Episode 1.