Anko is a very straightforward, observant, and sociable woman with a primarily casual attitude who likes to mess around with others. However, she can change her mood in the blink of an eye and quickly unsettle someone, either by becoming completely serious or displaying her unstable side. In the latter, it becomes apparent that she's got a few screws loose. She makes dirty jokes on occasion when drunk. She is also serious about romance, and is starved for a romantic relationship.