Kobayashi is the main protagonist of Kobayashi-san Chi no Maid Dragon. She works as a computer programmer in Jigokumeguri System Engineering Inc. Kobayashi is a bespectacled young woman with bright red hair that is always tied in a ponytail with some bangs let down and dead fish hazel brown eyes(by Tohru). She is known to be flat-chested, a physical trait that frustrates her to the point of grumbling over the female dragons' ample busts when they are in their human forms. In one of her drunken escapades, she demands that Tohru or Lucoa share some of their "blessing" with her. Her office attire is a white button-up shirt, a tie, and dark slacks. During her off-duty hours, she puts on either a light blue button-up shirt, a hoodie, a yellow tee or a light-brown cardigan with a white shirt underneath. Before meeting Tohru, Kobayashi would don a stoic expression on her face. Now, she is more approachable and open to others, often seen smiling contentedly. Even though Kobayashi maintains a cool demeanor, she has been regarded as kind-hearted and reliable among her friends and colleagues. Level-headed and pragmatic, she stands as the source of reason when dealing with her dragon friends. Kobayashi usually tends to show little emotion, and acts very lazy when she gets to stay at home. However, when she is intoxicated(drunk after drinking), Kobayashi tends to become rowdy and aggressive, especially in her interests in maids and is not above subjecting Tohru to her drunken whims.