Inaho Misora, localized as Hailey Anne Thomas, is an elementary school student living in Springdale. Her story begins when she buys a "space watch" from an anime hobby store, disappointed after missing a limited-edition Pretty Space Guardian Sailor Cuties figurine. This device turns out to be the Yo-kai Watch U Prototype, detecting yo-kai instead of the aliens she expected. Her disappointment fades upon meeting the yo-kai Usapyon, whom she first mistakes for an alien. After finally receiving the Sailor Cuties toy, she partners with Usapyon to solve yo-kai mysteries. She has light skin, short purple bobbed hair with a full fringe, and large round glasses. Her typical outfit features a blue top bearing a yellow music note, a pink cardigan with white and pink striped sleeves, a white miniskirt, dark blue leggings, and yellow sneakers with white accents. She wears the Yo-kai Watch U Prototype (later upgraded to U-2) on her left wrist. Winter wear includes a blue jumper under a white jacket with a pink collar, a light brown skirt, bright pink tights, and brown shoes. Special outfits include a Santa costume for Christmas, explorer gear with a beige helmet and pink knee socks, and story-specific costumes like a Sailor Cuties uniform or maid dress. Her personality revolves around an enthusiastic obsession with space, science fiction, and anime, especially Sailor Cuties. She often interprets everyday or yo-kai events through the lens of her favorite shows, irritating Usapyon. She possesses a short attention span, frequently shifting focus at critical moments, and displays airheaded tendencies by overlooking her actions' effects on others. Situations lacking space or alien elements quickly bore her. Despite this, she shows creativity in problem-solving, devising unconventional solutions during detective work. Her background involves helping Usapyon build a rocket to inspire his former master, Professor Hyuri, who fell into depression after Usapyon's accidental death. Though the rocket initially failed, its eventual launch reignited Hyuri's passion. Afterwards, she and Usapyon founded the Ha-pyon Detective Agency to investigate yo-kai mysteries. They temporarily disbanded after solving the Phantom Thief Kopin case but later reopened. The agency tackled cases where yo-kai tried possessing her classmates, called the "Demon Class" for their resistance, usually resulting in the yo-kai's plans backfiring. Key relationships include her close friendship with classmate Jessica Stonewood despite differing interests, occasional distance with the posh Isabel, and warm interactions with Kirara Hoshikaze when Kirara isn't maintaining her "princess" image. She actively protects her younger brother, Joshua, like searching for him when he went missing. Her dynamic with Usapyon involves frequently unintentionally irritating him, triggering his "Invader Mode" where he chases her with a laser gun. Their partnership remains foundational, built on mutual care and collaboration. She also races and collaborates with Nate Adams to thwart threats like The Ghoulfather, maintaining a respectful friendship despite occasional clashes. She appears as a playable protagonist in *Yo-kai Watch 3*, running the detective agency and undertaking quests. In *Yo-kai Watch 4*, she identifies disruptions caused by future yo-kai, is later kidnapped under the mistaken belief she is a princess, and after rescue appears with Usapyon in various locations. She makes cameo appearances in spin-offs like *Yo-kai Watch Dance* and *Wibble Wobble*. Her manga role parallels her anime and game depictions, focusing on detective adventures with Usapyon. Trivia notes her full localized name "Hailey Anne" is a pun on "alien," with "Hailey" referencing Halley's Comet. Her catchphrase "Chiwatchi!" and accompanying arm motion homage Ultraman's Spacium Ray pose. Early localization considered names like "Gracie" and show titles like "Sailor Star," with unused dialogue referencing these. She shares narrative parallels with Nate Adams, including their first meeting in the second film and collaborative efforts against antagonists.