An educated, professional and serious man. He is a vigilante in every word, and does not support criminals as his ideals say. Kunikida is a perfectionist man who tends to get stressed and irritated at the slightest mistake. Kunikida is characterized for being a lover of organization and planning and for having a notebook where he takes notes about everything he observes or plans. Doppo considers that everything he writes in his notebook is an ideal to follow in order to be successful in life.