Konata Izumi is, more by default than anything else, the "leader" of the main characters. Nicknamed "Kona-chan" by her friends, she is an eccentric but friendly and outgoing girl, with a mischeivous but good-natured sense of humor. She can be smart, but she hates studying, thus her grades are a bit uneasy. However, she is an expert in pulling an "all-nighter." In contrast to her studying habits, she loves video games, to the extent that she can compete against Kagami Hiiragi on trivia games