Kyousuke Natsume is the leader of the Little Busters and the dynamo behind all the fun among their members. His exceeding competence in all aspects is complemented by a single-minded, fun-seeking demeanor and a deep-set, perceptive compassion. He was the one that triggered the creation of the artificial world, with the aid of the others involved in the crash. He's trying to make Riki and Rin stronger so they can face the reality that awaits them together; as the potential sole survivors.