Tomoko Kuroki is the main character in the manga and anime series "Watamote." She is a socially awkward and introverted high school girl who struggles to make friends and interact with others. Tomoko often spends her time alone, playing video games and browsing online forums, and she has a vivid imagination that sometimes gets the better of her. Despite her struggles, Tomoko is intelligent and perceptive, and she is always searching for ways to improve herself and overcome her social anxiety.