Oka has remarkable self-worth and self-confidence. She can be bold and intimidating in both her attitude and appearance. She seems to like to'call the shots', often wanting to dominate over in her relationship. However, at other times, she is willing and able to become subservient. Oka is also portrayed as being a slightly devious girl, often peeking at her classmate's blouses and reacting positively to it. Oka is also a bit of an exhibitionist, as she likes to wear sexy, provocative clothing.