Kurona is very quiet and introverted, only speaking when necessary, and prefers to keep out of the spotlight. He also favors assisting others rather than taking the full initiative when on the field, mainly with Isagi. He also tends to repeat things and be semi-self-conscious about his shark-like teeth. That being said, him being quiet does not equal the assumption that he is a rude person, as he is quite nice to those who know him personally. In most situations seen with Kurona, he has never been confrontational and rather seems to carry himself very calmly. He also has the habit of saying a single word twice before actually saying a longer phrase, or simply repeating a word at the end of a sentence.