Kappa is energetic, yet self-conscious. He seems a little dramatic, but that makes him all the more charming. He's a little flirty, playful, childlike and all in all, a beacon of energy. Kappa does worry, whether he is doing well, to feeling that something bad will happen and that other sharks were being mean to Siren. He is also perceptive, guessing that Siren eats alone because it is unbearable for him to be praised by others. Feeling the same way, he finds it hard knowing he cannot live up to others expectations.