AE3803 is a determined but clueless red blood cell whose complete lack of direction often gets in the way of her deliveries. Despite this, she is dedicated to her work and therefore works hard to become as trustworthy as his peers, though this does not prevent her from losing herself at work. When she does talk to others, she is bubbly and cheerful and is always willing to offer help to those in need. She is also overly apologetic due to all the mistakes she makes and is easily scared.