The female human protagonist in Yo-kai Watch is Katie Forester, commonly called Katie.
Katie is an 11-year-old fifth-grade student and Nate’s classmate and childhood crush. In the English-language releases, she is portrayed as popular and highly intelligent, although she worries about failing to meet her mother’s expectations.
The franchise uses Katie as an alternate human lead in several versions of its story. Like Nate, she can serve as the player character in the original game, and the basic premise changes depending on which child the player selects. In some anime and manga stories, however, Katie does not possess a Yo-kai Watch and is unaware of the Yo-kai world.
Her Japanese name is Fumika Kodama, often shortened to Fumi-chan. This localization difference explains why references may list a different name. Katie should not be confused with Amy, Jibanyan’s former owner, or Lily Adams, a member of Nate’s family.