Kahlua is a patient and composed young lady with high intelligence and attention to detail. Although her slow-paced speech may give the impression that she is carefree, she possesses great knowledge and skills in potion-making. Despite being restricted by a mental block from fully utilizing her magical abilities, Kahlua remains eager to experiment and create new concoctions in her specialized lab on Luxiole. However, accidents often occur when Kazuya is present due to his carelessness. Despite the potential dangers of her experiments, Kahlua maintains a calm demeanor and describes possible outcomes if Kazuya makes a mistake during an experiment. Like most Angels, she speaks politely and uses the honorific -san when addressing others. Ranpha Franboise, who is fascinated by magic and has some knowledge of fortune-telling, highly respects Kahlua's abilities. This sometimes causes discomfort for Kahlua as she prefers not to be reminded of her immense magical power.