Fulein K. Lester (フレイン・K・レスター Furein K. Resutaa?) is the central protagonist of Tales of the World: Summoner's Lineage who, like his ancestor Claus F. Lester, is studying the principles of summoning. Although his knowledge on the subject still lacks credibility and his work ethic is questionable, he shows significant potential and is able to summon a large variety of creatures even at his novice state. In battle, Fulein is responsible for fortifying the player's army with additional units and can alter his elemental alignment given the situation. He is constantly followed by his fairy-like friend, Macaron, who gives him advice along the way.